National Clean Air Programme (NCAP):

• The National Clean Air Programme (NCAP) was officially launched by the Ministry of Environment, Forest and Climate Change (MoEFCC) in January 2019.
• It is a comprehensive, pan-India, time-bound national-level strategy to tackle air pollution across 131 non-attainment cities (cities that consistently violate National Ambient Air Quality Standards - NAAQS).
• Target: To achieve a 20% to 30% reduction in Particulate Matter (PM10 and PM2.5) concentrations by 2024 (taking 2017 as the base year), later revised to a 40% reduction or achieving NAAQS standards by 2026.

Therefore, the programme was launched in 2019 (Option D).

Ikshvaku Dynasty and the Title 'Shriparvatiya':

• In the Puranas (such as Matsya Purana and Vayu Purana), the rulers of the Ikshvaku dynasty of Andhra are referred to as 'Shriparvatiyas' (rulers/inhabitants of Sriparvata) and 'Andhrabhrityas' (servants/successors of the Satavahanas).
• The Ikshvakus ruled in the eastern Deccan along the Krishna-Guntur valley (Nagarjunakonda/Vijayapuri) in the 3rd and 4th centuries CE after the downfall of the Satavahanas.
• Their capital was Vijayapuri, situated on the plateau of Sriparvata (identified with the Nallamala range / Nagarjunakonda).
• Prominent rulers include Vasishthiputra Chamtamula (founder, performer of Ashvamedha) and Virapurushadatta.

Therefore, the rulers called 'Shriparvatiya' in Puranas are the Ikshvakus (Option B).

Poverty Line Estimation based Exclusively on Nutritional Requirements:

• The Task Force on Projections of Minimum Needs and Effective Consumption Demand, chaired by Dr. Y.K. Alagh (1979), was the first official committee to define the national poverty line exclusively on the basis of nutritional (caloric) requirements:

1. Rural areas: Minimum of 2400 kcal per person per day.
2. Urban areas: Minimum of 2100 kcal per person per day.

• The monetary poverty line was then estimated based on the per capita consumption expenditure required to purchase these minimum calorie baskets (₹49.09 per capita per month for rural and ₹56.64 for urban at 1973-74 prices).
• Later committees (Lakdawala, Tendulkar, Rangarajan) incorporated broader baskets of goods including health, education, clothing, and shelter.

Therefore, the committee based exclusively on nutritional requirements was the Alagh Committee (Option A).

Mauryan Official 'Agronomai':

• In Megasthenes' Indika (as quoted in Strabo's Geography, Book XV), the Mauryan public administration in the provinces was divided into three classes of officials:

1. Astynomoi: City magistrates/officials managing town affairs.
2. Agronomoi: District or rural magistrates/officials.
3. Military Officers: In charge of war.

• According to Strabo, the Agronomoi were responsible for:
• Measuring lands and inspecting irrigation sluices/water distribution.
• Superintending rivers and hunting.
• Supervising and constructing roads, setting up a pillar/milestone at every ten stadia showing the distances and by-roads.
• In the official UPPSC key and academic references, the Agronomoi are directly linked to 'Construction of roads' (Road construction and maintenance).

Therefore, the official 'Agronomai' was related to the Construction of roads (Option C).

Dimensions and Indicators of the Human Development Index (HDI):

• The Human Development Index (HDI) was developed by Pakistani economist Mahbub ul Haq and Indian Nobel laureate Amartya Sen, published by the United Nations Development Programme (UNDP) in its first Human Development Report in 1990.
• HDI is calculated using 3 core dimensions and 4 indicators:

1. Long and Healthy Life: Measured by Life Expectancy at birth.
2. Knowledge / Education: Measured by two indicators:

• Mean years of schooling (for adults aged 25 and older).
• Expected years of schooling (for children of school entering age).

1. A Decent Standard of Living: Measured by Gross National Income (GNI) per capita (PPP in USD).

• Social Inequality is NOT an indicator used in computing the standard HDI. Instead, inequality is measured in a separate composite index called the Inequality-adjusted Human Development Index (IHDI), introduced in 2010.

Therefore, Social Inequality is NOT used to calculate HDI (Option D).

Mahajanapadas and Their Capitals:

• During the 6th century BCE, ancient India witnessed the rise of 16 major territorial states known as the 16 Mahajanapadas (mentioned in the Buddhist Anguttara Nikaya and Jaina Bhagavati Sutra):

1. Matsya: Capital was Virat Nagar (modern Bairat in Jaipur/Alwar region, Rajasthan) -> A-3.
2. Kuru: Capital was Indraprastha (modern Delhi-Meerut-Haryana region) -> B-4.
3. Sursena: Capital was Mathura (Braj region of Western Uttar Pradesh) -> C-1.
4. Asmaka (Assaka): Capital was Potan / Potali / Paudanya (situated on the Godavari river, the only Mahajanapada in South India) -> D-2.

Matching Code: 3 4 1 2 (Option C).

The Concept of 'Culture of Poverty' / 'Cultural Poverty':

• The concept of the 'Culture of Poverty' was formulated and popularized by American anthropologist Oscar Lewis in his book 'Five Families: Mexican Case Studies in the Culture of Poverty' (1959) and further expanded in 'The Children of Sanchez' (1961) and 'La Vida' (1966).
• Lewis posited that prolonged poverty creates a distinct subculture among the impoverished that is characterized by fatalism, helplessness, a present-time orientation (lack of future planning), marginality, and low aspiration.
• This psychological and behavioral adaptation is passed down intergenerationally through family socialization, perpetuating the cycle of poverty even if external economic opportunities improve.

Therefore, the idea was given by Oscar Lewis (Option A).

Assertion-Reason Analysis: Chola Inscriptions and Historical Narratives:

• Assertion (A) is true: Historians possess far more detailed chronological and administrative information regarding the Imperial Cholas (9th to 13th centuries CE) than their predecessors (such as the early Cholas, Cheras, or Pallavas).
• Reason (R) is true: The great Chola emperor Rajaraja I (985–1014 CE) instituted the innovative practice of prefixing a formal historical narrative (known as Meikeerthi or Prashasti) of his military conquests and state achievements to all his royal stone inscriptions engraved on the granite walls of temples (most notably the Brihadisvara Temple at Thanjavur). His successors (Rajendra I, Rajadhiraja, Virarajendra, Kulottunga I) meticulously continued this custom.
• Explanation: It is precisely because of these enduring, dated temple wall inscriptions (Meikeerthis) describing their victories that historians possess such rich and accurate information about the Cholas.

Therefore, both (A) and (R) are true and (R) is the correct explanation of (A) (Option A).

Negative Aspects of Development Debates in the Mid-1980s:

• During the mid-1980s, the global discourse on economic development underwent a profound paradigm shift, heavily critiquing the traditional industrial-growth model.
• The major negative aspects highlighted internationally and in India included:

1. Environmental pollution: Industrial effluents, air pollution, chemical disasters (Bhopal Gas Tragedy, 1984).
2. Degradation of natural resources: Deforestation, soil erosion, depletion of water tables, loss of biodiversity.
3. Displacement and rehabilitation of masses: Large dam projects (e.g., Narmada Valley Project, Silent Valley) triggering mass protests over involuntary displacement and loss of tribal livelihoods.

• 'Politics and Development' was an ongoing institutional/academic topic, but it was NOT considered an acute negative ecological/human fallout of the developmental process itself during this debate.

Therefore, Politics and Development was NOT such important as a negative aspect (Option C).

Discovery of Bhimbetka Caves by Dr. V.S. Wakankar:

• The Bhimbetka Rock Shelters (located in the Raisen District of Madhya Pradesh, nestled in the foothills of the Vindhyan Mountains) were discovered in 1957 by renowned Indian archaeologist Dr. Vishnu Shridhar Wakankar (V.S. Wakankar).
• While traveling by train from Bhopal to Itarsi, Dr. Wakankar noticed rock formations resembling those he had observed in Europe (Spain and France) and disembarked to inspect them, thereby uncovering hundreds of prehistoric rock shelters containing Paleolithic, Mesolithic, and Chalcolithic rock art.
• Bhimbetka was declared a UNESCO World Heritage Site in 2003.
• The paintings depict scenes of hunting, dancing, animal riding, and daily rituals using mineral pigments (ochre/geru and white lime).

Therefore, the archaeologist was V.S. Wakankar (Option C).

Number of Cities in Uttar Pradesh under the Smart Cities Mission:

• Under the Central Government's flagship Smart Cities Mission (SCM) launched on 25 June 2015 to develop 100 smart cities across India:
• In Uttar Pradesh, exactly 10 cities were selected in various rounds of the National Smart Cities Challenge:

1. Lucknow
2. Kanpur
3. Prayagraj (Allahabad)
4. Varanasi
5. Agra
6. Aligarh
7. Jhansi
8. Bareilly
9. Moradabad
10. Saharanpur

• (Note: To ensure all 17 municipal corporations in UP were modernized, the UP State Government subsequently launched the State Smart City Scheme for the remaining 7 municipal corporations — Meerut, Ghaziabad, Ayodhya, Firozabad, Gorakhpur, Mathura-Vrindavan, and Shahjahanpur — but under the Central Mission, the quota for UP was exactly 10).

Therefore, the number of cities covered under the Central scheme is 10 (Option A).

Match List: Harappan Sites and Their Locations:

• Archaeological sites of the Indus Valley (Harappan) Civilization and their corresponding Indian States/UTs:

1. Balu: Located in the Kaithal district of Haryana (famous for plant remains including garlic) -> A-3.
2. Manda: Located on the right bank of the Chenab river in Jammu district of Jammu & Kashmir (northernmost Harappan site in India) -> B-2.
3. Padri: Located in Bhavnagar district of Gujarat (known for early Harappan pottery and salt production) -> C-4.
4. Hulas: Located in the Saharanpur district of Uttar Pradesh (important Late Harappan site yielding solid evidence of rice and cotton cultivation) -> D-1.

Matching Code: 3 2 4 1 (Option D).

Brundtland Report and the Concept of Sustainable Development:

• The formal international debate and consensus on 'Sustainable Development' began following the submission of the landmark report titled 'Our Common Future' in October 1987 to the United Nations General Assembly.
• The report was prepared by the World Commission on Environment and Development (WCED), chaired by the former Prime Minister of Norway, Gro Harlem Brundtland (hence known as the Brundtland Commission).
• The report provided the classic, globally accepted definition of sustainable development:

> "Development that meets the needs of the present without compromising the ability of future generations to meet their own needs."

• This report directly laid the groundwork for the 1992 Rio Earth Summit and Agenda 21.

Therefore, the 1987 UN report was titled 'Our Common Future' (Option B).

Sun Temple of Multan and Sambapur:

• Statement 1 is correct: The famous Sun Temple of Multan (known as the Aditya Temple of Multan, located on the banks of the Chenab/Ravi in Punjab, present-day Pakistan) was a celebrated pilgrimage site of ancient India. It is vividly described in historical chronicles by Chinese pilgrim Hiuen Tsang (Xuanzang) in 641 CE, Arab traveller Abu Zaid (Abuzaiyid), geographer Al-Masudi (who noted that the Pratihara kings protected the idol), and Persian scholar Alberuni in his Kitab-ul-Hind.
• Statement 2 is correct: In ancient Sanskrit literature (Bhavishya Purana, Samba Purana), Multan was called Sambapura (or Mulasthana), founded by Samba, the son of Lord Krishna. Legend narrates that Samba built the Sun temple here to cure himself of leprosy after being cursed, establishing the historic solar pilgrimage to Sambapur.

Therefore, both statements 1 and 2 are correct (Option C).

Atal Innovation Mission (AIM):

• The Atal Innovation Mission (AIM) is the Government of India's flagship initiative launched in 2016 under the aegis of NITI Aayog.
• Objective: To create and promote a robust culture of innovation and entrepreneurship across the country from schools to research institutions and MSMEs.
• Major Pillars of AIM:

1. Atal Tinkering Labs (ATLs): Established in schools across India (grades 6 to 12) to foster curiosity, creativity, and computational thinking.
2. Atal Incubation Centres (AICs): Fostering world-class startups and adding incubation capacity across universities and industries.
3. Atal New India Challenges (ANIC): Supporting technology-driven innovations in sectors of national importance (smart mobility, clean energy, agriculture).
4. Mentor India: National mentor network engaging corporate and academic professionals.

Therefore, AIM is an initiative set up by NITI Aayog (Option B).

Indian Representation at the First International Labour Conference (Washington, 1919):

• Following the signing of the Treaty of Versailles, the International Labour Organization (ILO) was created in 1919, and its inaugural session (the Washington Summit) was convened in October–November 1919.
• The Government of India nominated Narayan Malhar Joshi (N.M. Joshi) as the official Indian Workers' Delegate (representative of Indian labour).
• B.P. Wadia (founder of the Madras Labour Union) attended as his technical advisor.
• N.M. Joshi was a key leader of the Social Service League and later founded the All India Trade Union Congress (AITUC) in 1920 along with Lala Lajpat Rai and Joseph Baptista.

Therefore, the representative of labourers was N.M. Joshi (Option B).

Rachel Carson and 'Silent Spring' (1962):

• The seminal environmental book 'Silent Spring' was authored by American marine biologist and conservationist Rachel Carson and published in September 1962.
• The book meticulously documented the devastating ecological damage caused by the widespread and indiscriminate aerial spraying of synthetic chemical pesticides, particularly DDT (Dichlorodiphenyltrichloroethane).
• Carson showed how DDT bioaccumulates and biomagnifies up the food chain, thinning the eggshells of predatory birds (such as the bald eagle, peregrine falcon, and osprey) and poisoning waterways.
• The public outcry sparked by 'Silent Spring' led to a national ban on DDT for agricultural use in the US in 1972 and inspired the modern global environmental movement, eventually culminating in the creation of the US Environmental Protection Agency (EPA).

Therefore, the author was Rachel Carson (Option C).

Treaty of Aix-la-Chapelle (1748) and the First Carnatic War:

• Statement 1 is correct: The First Carnatic War (1746–1748) between the English and French East India Companies in South India was an extension of the War of the Austrian Succession in Europe. The hostilities in India ended with the conclusion of the Treaty of Aix-la-Chapelle in October 1748.
• Statement 2 is correct: Under the mutual restitution terms of the Treaty of Aix-la-Chapelle, the French restored Madras (Fort St. George) back to the English (which had been captured in 1746 by the French under Dupleix and Admiral La Bourdonnais), while the English returned the fortress of Louisbourg (on Cape Breton Island in North America) back to the French.

Therefore, both statements 1 and 2 are correct (Option C).

Integrated Child Development Services (ICDS) Scheme:

• The Integrated Child Development Services (ICDS) scheme was launched on 2 October 1975 (on the 106th birth anniversary of Mahatma Gandhi) by the Ministry of Women and Child Development.
• It is one of the world's largest early childhood development programmes, targeting children aged 0–6 years, pregnant women, and lactating mothers through Anganwadi centres.
• ICDS provides an integrated package of six core services:

1. Supplementary Nutrition (SNP)
2. Immunization (administered with the Health Department)
3. Health Check-up
4. Referral Services
5. Pre-school Non-formal Education
6. Nutrition and Health Education (NHED)

• Family Planning is NOT an objective or service component of ICDS. Family planning services and contraceptive distribution fall under the mandate of the Ministry of Health and Family Welfare (NHM).

Therefore, Family Planning is NOT covered under ICDS (Option D).

Match List: British Colonial Acts and Enactment Years:

• Historical legislative enactments under British rule:

1. Indian Arms Act: Passed in 1878 under Viceroy Lord Lytton (Act XI of 1878), prohibiting Indians from possessing arms without a license -> A-2.
2. Royal Titles Act: Passed in 1876 under Lord Lytton, officially designating Queen Victoria as 'Kaisar-i-Hind' (Empress of India) -> B-1.
3. Indian High Courts Act: Passed in 1861 under Viceroy Lord Canning, abolishing the Supreme Courts and Sadar Adalats and authorizing Queen Victoria to issue letters patent establishing High Courts at Calcutta, Bombay, and Madras (established 1862) and Agra/Allahabad (1866) -> C-4.
4. Indian Divorce Act: Passed in 1869 (Act IV of 1869) to amend the law relating to divorce and matrimonial causes for Christians in India -> D-3.

Matching Code: 2 1 4 3 (Option D).

Match List: Historical Periods and Their Primary Socio-Economic Character:

• Socio-economic characteristics of ancient and medieval Indian epochs:

1. Indus Valley Civilization: Renowned for its Urban character (mature town planning, grid layouts, bronze metallurgy, extensive domestic and maritime commerce, seal trade) -> A-4.
2. Later Vedic Society: Predominantly Agrarian (settled agricultural economy, iron technology / krishna ayas, territorial states / janapadas, surplus produce) -> B-3.
3. Rigvedic Society: Primarily Pastoral (semi-nomadic, cattle rearing as primary wealth, cattle-raids / gavishti, raja as protector of cows / gopati) -> C-1.
4. Medieval Period: Characterized by Land Lordism / Feudalism (hierarchical land relations, Iqta, Jagirdari, and Zamindari tenures, intermediaries extracting peasant surplus) -> D-2.

Matching Code: 4 3 1 2 (Option D).

Merger / Annexation of Sikkim into British India under Lord Dalhousie:

• In 1849–1850, Lord Dalhousie (Governor-General of India, 1848–1856) annexed the Darjeeling district and the fertile Sikkim Terai (foothills) into British India.
• Pretext: Two British medical officers and botanists, Dr. Archibald Campbell (Superintendent of Darjeeling) and Dr. Joseph Dalton Hooker, had entered Sikkim to explore its flora and fauna without the explicit permission of the Chogyal (King of Sikkim). They were detained and briefly imprisoned by the Dewan of Sikkim (Namgay).
• Seizing this pretext of 'insult to British subjects', Lord Dalhousie dispatched a punitive military expedition, stopped the annual subsidy to the Chogyal, and formally annexed the entire Sikkim Terai and Darjeeling morang into British Indian territory.
• (Note: Complete constitutional integration of Sikkim into the Indian Republic as the 22nd State took place later in 1975 under the 36th Constitutional Amendment Act).

Therefore, the British Governor-General who merged Sikkim territories was Lord Dalhousie (Option C).

Census Demographics of Kanpur and Lucknow becoming Million Cities:

• A 'Million-Plus City' (Urban Agglomeration / Million City) is defined by the Census of India as a city with a total population of 10 Lakh (1 million) or more.
• Historical Census milestones for Uttar Pradesh's major metropolitan cities:

1. Kanpur: Evolved as the premier industrial hub ('Manchester of the East') of Northern India with massive textile mills and tanneries. Kanpur crossed the 10 lakh population threshold in the 1971 Census (recording an urban population of approximately 1.27 million), becoming UP's first million-plus city.
2. Lucknow: The state capital experienced rapid post-independence administrative and service-sector expansion, officially crossing the 10 lakh mark in the subsequent 1981 Census (recording an urban population of 1.007 million).

Therefore, Kanpur and Lucknow became million cities in 1971 and 1981 respectively (Option C).

Participants of the Second Round Table Conference (1931):

• The Second Round Table Conference was held in London from 7 September to 1 December 1931 under British Prime Minister Ramsay MacDonald.
• Following the Gandhi-Irwin Pact (March 1931), the Indian National Congress agreed to participate, and Mahatma Gandhi attended as the sole official representative of the Congress.
• Other prominent Indian delegates included:
• Sarojini Naidu and Begum Jahanara Shahnawaz (representing Indian women).
• Pt. Madan Mohan Malaviya (attending as an individual nationalist delegate / Hindu Mahasabha).
• Dr. B.R. Ambedkar (representing Depressed Classes).
• Muhammad Ali Jinnah and Aga Khan III (representing Muslims).
• Dr. Rajendra Prasad did NOT travel to London; he remained in India actively overseeing Congress party administration and the civil disobedience framework in Bihar and nationwide.

Therefore, Dr. Rajendra Prasad did NOT participate in the Second Round Table Conference (Option D).

Match List: Traditional Socio-Economic Systems across Regions of India:

• Traditional patron-client, village servant, and customary land tenure institutions in pre-modern India:

1. Jajmani System: The quintessential hereditary reciprocal service and patron-client exchange system prevalent across North India (analyzed extensively by William Wiser in UP) -> A-1.
2. Bara Balute (Balutedari): The traditional village servant system in Maharashtra, where 12 hereditary artisan and service castes (Balutedars) served the agrarian community in exchange for a share (Baluta) of agricultural produce -> B-3.
3. Mirasi System: Hereditary property and customary landholding rights system established across Tamil Nadu (South India) -> C-4.
4. Adade: Traditional agricultural labor/service arrangement found in parts of Karnataka -> D-2.

Matching Code: 1 3 4 2 (Option B / D in UPPSC evaluation; Code: A-1, B-3, C-4, D-2).

Match List: Nationalist Books and Their Authors:

• Celebrated literary and political works of the Indian National Movement:

1. The Story of My Deportation: Written by Lala Lajpat Rai in 1908, detailing his unauthorized arrest and political exile/deportation to Mandalay Jail (Burma) in 1907 by the British without trial -> A-3.
2. Gita Rahasya (Shrimadh Bhagavad Gita Rahasya): Authored by Bal Gangadhar Tilak in 1915 while serving a six-year prison sentence in Mandalay Jail (Burma), propounding the philosophy of Karma Yoga -> B-4.
3. A Nation in Making: The classic political autobiography of moderate nationalist leader Surendranath Banerjee, published in 1925 -> C-1.
4. India Wins Freedom: The celebrated autobiographical account of the partition and independence era by Maulana Abul Kalam Azad, published posthumously in 1959 -> D-2.

Matching Code: 3 4 1 2 (Option A).

The Concept of 'Marginal Man':

• The sociological concept of the 'Marginal Man' was propounded by American sociologist Robert E. Park (a leading figure of the Chicago School of Sociology) in his 1928 landmark paper titled 'Human Migration and the Marginal Man', published in the American Journal of Sociology.
• Park defined the 'marginal man' as an individual who lives on the boundary between two distinct cultures, societies, or ethnic groups, neither of which fully accepts or incorporates him.
• Caught in cultural transition through migration or urbanization, the marginal man experiences identity crisis, social detachment, and psychological strain, but simultaneously develops heightened self-consciousness, cosmopolitanism, and intellectual objectivity.
• The concept was later extensively developed and popularized by his student Everett Stonequist in his 1937 book The Marginal Man.

Therefore, the concept was propounded by Robert E. Park (Option A).

Modern Armoury at Dindigul (Mysore) in 1755:

• In 1755, Haidar Ali (then serving as the Faujdar of Dindigul under the nominal authority of the Wodeyar ruler Chikka Krishnaraja II and his powerful minister Nanjaraj) established a modern artillery arsenal and armoury at Dindigul.
• Recognizing the superiority of European military technology and discipline, Haidar Ali engaged French military engineers and gunsmiths from Pondicherry to manufacture state-of-the-art firearms, muskets, and artillery.
• He trained his sepoy infantry along modern European lines, which laid the solid foundation for his subsequent rise to supreme power in Mysore in 1761, transforming Mysore into a formidable military force against the Marathas, the Nizam, and the British East India Company.

Therefore, the armoury was established by Haidar Ali (Option B).

Major Causes of Wildlife Extinction (Proximate Ecological Factors vs Distal Drivers):

• In conservation biology and ecology, the direct (proximate) major causes of wildlife extinction (summarized by E.O. Wilson under the acronym HIPPO) are:

1. H - Habitat Loss / Destruction: The single greatest cause (deforestation, urbanization, conversion of forests into agricultural lands) -> Option A.
2. I - Invasive Species: Introduction of exotic alien species disrupting local food webs.
3. P - Pollution: Toxic chemicals, plastic wastes, acid rain, oil spills.
4. P - Population / Forest Fires: Direct catastrophes like massive wildfires ('To make fire in the forest' - Option B) destroying entire endemic populations and nesting habitats.
5. O - Overexploitation / Illegal Trade: Poaching, hunting, illegal commercial wildlife trade (ivory, skins, horns, bushmeat) -> Option C.

• While 'Fast pace of human population growth' (Option D) is an underlying socio-demographic driver that exacerbates habitat loss, it is NOT classified in ecological literature as a direct, proximate cause of wildlife extinction itself.
• In the official UPPSC answer key, Option D ('Fast pace of population growth') was evaluated as NOT a direct major cause.

Therefore, the correct answer is Fast pace of population growth (Option D).

Assertion-Reason Analysis: British Land Revenue Systems and Peasant Classes:

• Assertion (A) is true: The British colonial government deliberately introduced three completely different land revenue systems in different parts of India:

1. Permanent Settlement (Zamindari System): Introduced by Lord Cornwallis in 1793 in Bengal, Bihar, and Odisha, creating a class of hereditary absentee landlords.
2. Ryotwari System: Introduced by Thomas Munro and Alexander Read in Madras and Bombay Presidencies, dealing directly with the peasant cultivators (ryots).
3. Mahalwari System: Introduced by Holt Mackenzie (1822) and modified by Robert Merttins Bird (1833) in the North-Western Provinces (Agra-Awadh) and Punjab, fixing revenue collectively with village communities (mahals).

• Reason (R) is true: Because these systems structured property rights, revenue demands, and tenancy terms fundamentally differently, they created distinct, stratified agrarian classes across Indian peasantry (wealthy absentee zamindars, sub-tenants, sharecroppers, bonded laborers, and heavily indebted smallholders).
• Explanation: The introduction of varying property and tenancy arrangements by the British was the direct cause behind the emergence of these divergent socio-economic classes within the Indian peasantry.

Therefore, both (A) and (R) are true and (R) is the correct explanation of (A) (Option A).

Dedication of the Hubballi Railway Museum (August 2020):

• On 9 August 2020, the Hubballi (Hubli) Railway Museum in Karnataka was dedicated to the nation by Union Minister of Railways Piyush Goyal and Minister of Parliamentary Affairs Pralhad Joshi via video conferencing.
• It is the second railway museum in South Western Railway (SWR) after the historic Mysore Railway Museum (established in 1979).
• The museum showcases the rich heritage and evolution of Indian Railways, featuring steam locomotives, vintage carriages, narrow-gauge rolling stock, signaling equipment, and a toy train for visitors.

Therefore, the Railway Museum was dedicated at Hubballi (Option A).

Chronological Arrangement of Medieval Literary Texts:

• Historical composition timeline of the four classical texts:

1. Kitab-ul-Hind (Tahqiq ma li-l-Hind): Written by the great Central Asian polymath Al-Biruni (Alberuni) in Arabic around c. 1030 CE, following his travels to India with Sultan Mahmud of Ghazni -> (3).
2. Prithviraja-Raso: Composed in Brajbhasha/Pingal by court poet Chand Bardai, narrating the heroic exploits of Chahamana ruler Prithviraja III (reigned 1177–1192 CE), compiled in the late 12th / early 13th century CE -> (2).
3. Tabaqat-i-Nasiri: Written in Persian by chronicler Minhaj-i-Siraj Juzjani in 1260 CE, dedicated to Delhi Sultan Nasiruddin Mahmud -> (4).
4. Fatawa-i-Jahandari: Written in Persian on statecraft and political theory by Ziauddin Barani during the reign of Sultan Firuz Shah Tughlaq around c. 1357 CE -> (1).

Correct Chronological Order: 3, 2, 4, 1 (Option D).

First Arab Nation to Launch a Mars Mission (Hope Probe, July 2020):

• On 19/20 July 2020, the United Arab Emirates (UAE) scripted history by becoming the first Arab nation and the fifth space entity globally to launch an interplanetary mission to Mars.
• The mission, known as the Emirates Mars Mission (Hope Probe / Al-Amal), was launched aboard a Japanese H-IIA rocket from the Tanegashima Space Center in Japan.
• The Hope Probe successfully entered Martian orbit in February 2021 to coincide with the 50th anniversary of the formation of the UAE.
• Objective: To study the dynamics of the Martian atmosphere, diurnal and seasonal weather cycles, and the loss of hydrogen and oxygen into space.

Therefore, the first Arab Nation was the United Arab Emirates (UAE) (Option C).

Ruler of Golkonda during Aurangzeb's Siege of 1687:

• In 1687, Mughal Emperor Aurangzeb personally led the Mughal imperial army to besiege the impregnable fort of Golkonda (held by the Qutb Shahi dynasty of the Deccan).
• The reigning Sultan of Golkonda at that time was Abul Hasan Qutb Shah (popularly known as Tana Shah, who ruled from 1672 to 1687).
• The Mughal siege lasted for over eight arduous months. The fort's walls could not be breached by military force; Aurangzeb finally captured it in September 1687 through the treachery of an Afghan commander named Abdullah Khan Pani, who opened the Fateh Darwaza at midnight in exchange for a bribe.
• Abul Hasan Tana Shah was captured, Golkonda was annexed into the Mughal Empire as a Subah, and Tana Shah was imprisoned for the rest of his life in the fort of Daulatabad.

Therefore, the ruler of Golkonda was Abul Hasan Qutb Shah (Option A).

Ban on Free Internet for Social Media in Bangladesh (July 2020):

• In July 2020, the Bangladesh Telecommunication Regulatory Commission (BTRC) officially ordered all telecom and mobile operators in Bangladesh to discontinue free internet packages and zero-rated data offerings for accessing social media platforms (such as Facebook, Messenger, and YouTube).
• Rationales cited by the Bangladesh Government:

1. Free social media access was facilitating unhealthy competition among telecom operators.
2. Crucially, free social media access was being widely misused to spread communal rumors, viral fake news, disinformation, and unlawful activities across the country.
3. Curbing digital crime and stabilizing telecom revenues during the pandemic.

Therefore, the neighbouring country was Bangladesh (Option D).

Akbar's Social Reforms on Marriage:

• Mughal Emperor Akbar implemented forward-looking social reforms regarding marriage, as recorded in contemporary accounts by Abul Fazl (Ain-i-Akbari) and Abdul Qadir Badauni (Muntakhab-ut-Tawarikh):

1. Statement 1 is correct: Akbar actively sought to curb child marriage and fix the minimum age of marriage. He promulgated royal decrees fixing the minimum marriageable age at 16 years for boys and 14 years for girls, observing that early marriage damaged the health of young mothers and offspring.
2. Statement 2 is correct: Akbar strongly disapproved of forced marriages arranged under parental coercion without mutual consent. He decreed that young boys and girls should have complete liberty to marry of their own free will and mutual choice, rather than bowing to the parental pressure or financial interests of elders.
3. (He also appointed state officials called Tui-begi to verify the ages and voluntary consent of both bride and groom before solemnizing marriages).

Therefore, both statements 1 and 2 are correct (Option C).

India Ideas Summit 2020:

• Statement 1 is correct: The India Ideas Summit 2020 was organized virtually by the US-India Business Council (USIBC) on 22 July 2020. Prime Minister Narendra Modi delivered the keynote address at the summit, inviting US investors to invest across sectors such as healthcare, defense, space, energy, and digital technology in India.
• Statement 2 is incorrect: The official theme of the India Ideas Summit 2020 was 'Building a Better Future', NOT 'Empowering India'.

Therefore, only statement 1 is correct (Option A).

Match List: Mughal Central Administrative Officers and Their Assigned Duties:

• Administrative departments and designated responsibilities in the Mughal imperial machinery:

1. Diwan-i-Tan: Handled the administration of Jagir allotments and cash salaries (Tankhwah) of imperial officers and Mansabdars -> A-3.
2. Mustarfi (Mustaufi): The Auditor-General of the empire, responsible for inspecting and examining the accounts of income and expenditure of the state -> B-4.
3. Mushrif: The Chief Accountant / Office Superintendent who maintained registers and looked after the central secretariat / treasury office -> C-1.
4. Vakianvis (Waqia-Nawis): The court news-recorder or imperial chronicler who maintained a chronological list and record of daily royal events, proceedings, and imperial firmans -> D-2.

Matching Code: 3 4 1 2 (Option B).

National Law University at Prayagraj:

• On 29 July 2020, the Uttar Pradesh State Cabinet chaired by Chief Minister Yogi Adityanath officially approved the establishment of a state-of-the-art National Law University (NLU) at Prayagraj (Allahabad).
• It was established under the Uttar Pradesh National Law University Act, 2020, and in December 2021, President Ram Nath Kovind laid the foundation stone.
• The university has been named Dr. Rajendra Prasad National Law University, Prayagraj, honoring India's first President, who was a brilliant legal scholar and began his legal career in Allahabad.
• It is the second National Law University in Uttar Pradesh, after Dr. Ram Manohar Lohiya National Law University (RMLNLU) in Lucknow.

Therefore, the cabinet approved the university at Prayagraj (Option D).

Sufi Saints and Their Dargahs / Shrines:

• Historical shrines (khanqahs and dargahs) of major Sufi saints:

1. Shaikh Moinuddin Chishti: The founder of the Chishti order in India; his world-famous Dargah Sharif is in Ajmer, Rajasthan -> Correctly matched.
2. Shaikh Burhanuddin Gharib: Disciple of Nizamuddin Auliya who pioneered the Chishti silsila in the Deccan; his dargah is located in Daulatabad (Khuldabad), Maharashtra -> Correctly matched.
3. Shaikh Mohammad Hussaini (Hazrat Khwaja Banda Nawaz Gesudaraz): Renowned Chishti saint of the Deccan; his dargah is in Gulbarga (Kalaburagi), Karnataka -> Correctly matched.
4. Shaikh Nizamuddin Auliya (Hazrat Nizamuddin): The celebrated fourth-generation master of the Chishti order; his revered Dargah is in Delhi (Ghiyaspur), NOT Multan. The prominent Sufi saint associated with Multan was Shaikh Bahauddin Zakariya of the Suhrawardi order.

Therefore, Shaikh Nizamuddin Auliya – Multan is NOT correctly matched (Option D).

Host State for the 4th Khelo India Youth Games (KIYG 2021):

• On 25 July 2020, Union Minister of State for Youth Affairs and Sports Kiren Rijiju along with Haryana Chief Minister Manohar Lal Khattar announced via video conference that Haryana would host the 4th edition of the Khelo India Youth Games.
• The games were scheduled to be held primarily at Panchkula (Haryana), with additional events in Shahbad, Ambala, Chandigarh, and Delhi.
• Haryana, widely regarded as India's powerhouse of Olympic wrestling, boxing, and athletics, won the top medal tally when the 4th edition was eventually conducted in June 2022.

Therefore, the host state announced was Haryana (Option A).

Restoration of Firuz Shah's Rajabwah Canal as 'Shahab Nahr':

• In the 14th century, Sultan Firuz Shah Tughlaq constructed the Rajabwah Canal (drawing water from the Yamuna river near Karnal towards Hissar-Firoza for agriculture).
• During the Mughal period under Emperor Akbar, the canal had become silted up and non-functional. In 1570–1571 CE, Akbar directed Shihab-ud-din Ahmad Khan (the governor of Delhi) to excavate, repair, and desilt the Rajabwah canal to irrigate parched estates.
• The renovated canal was named 'Shahab Nahr' (after Shihabuddin Ahmad Khan).
• Later, during Emperor Shah Jahan's reign, this canal was further widened, extended, and brought to the newly built imperial capital of Shahjahanabad (Delhi) by engineer Ali Mardan Khan, where it became known as Nahr-i-Bihisht (Canal of Paradise).
• The canal that was directly constructed by restoring the Rajabwah of Firuz Shah was Shahab Nahr.

Therefore, the canal constructed was Shahab Nahr (Option B).

Mohun Bagan on NASDAQ Billboard in Times Square (July 2020):

• On 29 July 2020, celebrated annually as 'Mohun Bagan Day', iconic Kolkata football club Mohun Bagan Athletic Club became the first ever Indian sports and football club to feature on the famous NASDAQ billboard in New York's Times Square.
• The digital billboard displayed Mohun Bagan's green-and-maroon colors, official crest (a traditional Bengali country boat / dinghi), and anniversary greetings reading: '131 Years of Unmatched Legacy'.
• Mohun Bagan Day commemorates the club's historic 1911 IFA Shield triumph, where a barefoot Mohun Bagan team defeated the East Yorkshire Regiment 2-1 on 29 July 1911, marking an unforgettable nationalist victory in Indian sports history.

Therefore, the football club was Mohun Bagan (Option C).

Author of 'Kitab-i-Nauras' (Ibrahim Adil Shah II):

• 'Kitab-i-Nauras' (Book of Nine Rasas) was authored by Sultan Ibrahim Adil Shah II (1580–1627 CE), the cultured ruler of the Adil Shahi dynasty of Bijapur.
• Written in Dakhani Urdu (with heavy Sanskritized diction), the book is a celebrated collection of 59 poems and 17 couplets set to classical Indian musical ragas.
• The opening songs of the book invoke Goddess Saraswati (Goddess of Learning) and Lord Ganesha, as well as Prophet Muhammad and Sufi saint Hazrat Gesudaraz, reflecting the Sultan's profound syncretic philosophy, secular outlook, and devotion to Indian classical music.
• Because of his deep scholarship, religious tolerance, and love for music and poor subjects, he was affectionately hailed as 'Jagat Guru Badshah' and 'Abla Baba' (Friend of the Poor).

Therefore, the author of 'Kitab-i-Nauras' was Ibrahim Adil Shah II (Option A).

Inaugural Journey of India's First 'Kisan Rail' (August 2020):

• On 7 August 2020, India's first 'Kisan Rail' special freight train was flagged off jointly by Union Agriculture Minister Narendra Singh Tomar and Railway Minister Piyush Goyal via video conferencing.
• The train operated between Devlali in Nashik district of Maharashtra and Danapur in Patna district of Bihar.
• Purpose: To fulfill the Union Budget 2020-21 announcement to build a seamless national cold supply chain for perishable agricultural produce (fruits, vegetables, milk, meat, fish), enabling farmers to transport fresh produce across long distances quickly without spoilage and realize better prices.
• The train covered a distance of 1,519 km in approximately 32 hours across Maharashtra, Madhya Pradesh, Uttar Pradesh, and Bihar.

Therefore, the first Kisan Rail ran between Devlali and Danapur (Option B).

Major Solar Power Plant in Uttar Pradesh with French Collaboration (Mirzapur):

• On 12 March 2018, Prime Minister Narendra Modi and French President Emmanuel Macron jointly inaugurated Uttar Pradesh's then largest solar power plant (75 MW / 100 MWp capacity) at Dadarkala village in the Chhanvey block of Mirzapur district, Uttar Pradesh.
• The project was constructed by Engie Solar (Solar Direct), a leading French multinational energy group, in collaboration with the Solar Energy Corporation of India (SECI) and Uttar Pradesh New and Renewable Energy Development Agency (UPNEDA).
• Built at an investment of over ₹650 crore across 380 acres of rugged Vindhyan terrain, the plant generates over 15.6 crore units of clean electricity annually.

Therefore, the solar plant was established in Mirzapur (Option D).

International Summits and Host Locations (Incorrect Match Analysis):

• Analysis of international summit venues:

1. East Asia Summit, 2020: The 15th East Asia Summit (held virtually on 14 November 2020) was hosted by Vietnam (Hanoi) as ASEAN Chair 2020, NOT Singapore. Singapore was the host earlier in 2018 -> Option A is NOT correctly matched.
2. G-20 Summit, 2019: Held on 28–29 June 2019 in Osaka, Japan -> Correctly matched.
3. G-7 Summit, 2019: The 45th G7 summit took place on 24–26 August 2019 in Biarritz, France -> Correctly matched.
4. East Asia Summit, 2019: The 14th East Asia Summit was held on 4 November 2019 in Bangkok, Thailand -> Correctly matched.

Therefore, East Asia Summit, 2020 – Singapore is the incorrect match (Option A).

Addition of Ramsar Wetland Sites to Uttar Pradesh in January 2020:

• On 28 January 2020, the Ministry of Environment, Forest and Climate Change announced that the Ramsar Convention had declared 10 new wetlands of international importance in India, out of which exactly 6 new Ramsar sites were in Uttar Pradesh:

1. Nawabganj Bird Sanctuary (Unnao district)
2. Parvati Arga Bird Sanctuary (Gonda district)
3. Saman Bird Sanctuary (Mainpuri district)
4. Samaspur Bird Sanctuary (Rae Bareli district)
5. Sandi Bird Sanctuary (Hardoi district)
6. Sarsai Nawar Jheel (Etawah district)

• Prior to January 2020, Upper Ganga River (Brijghat to Narora stretch, declared 2005) was the only Ramsar site in UP. This addition of 6 sites raised Uttar Pradesh's tally from 1 to 7.

Therefore, exactly 6 more Ramsar Sites were added to Uttar Pradesh in January 2020 (Option B).

The High Court of Chhattisgarh and the Chhattisgarh State Legal Services Authority organized India's first-ever state-wide e-Lok Adalat on 11 July 2020 via video conferencing during the COVID-19 pandemic, inaugurated by Chief Justice P. R. Ramachandra Menon. Correct Option is C (Chhattisgarh).

Indigenous Tribes of Andaman and Nicobar Islands vs Mainland Tribes:

• The indigenous aboriginal tribal communities of the Andaman and Nicobar Islands belong to two distinct racial groups:

1. Negrito Tribes of the Andaman Islands:

• Great Andamanese (Strait Island)
• Onge (Little Andaman) -> Option C
• Jarawa (South and Middle Andaman)
• Sentinelese (North Sentinel Island)

1. Mongoloid Tribes of the Nicobar Islands:

• Shompen (Great Nicobar) -> Option D
• Nicobarese (including the Halchu / Holchu subgroup living in the Nicobar Islands) -> Option A
• Rengma: The Rengma is a prominent Naga scheduled tribe native to Nagaland and Karbi Anglong in Assam (Northeast India). They speak the Rengma language (Tibeto-Burman family) and celebrate the Ngada festival. They are NOT native to Andaman and Nicobar.

Therefore, the tribe that is NOT native to Andaman and Nicobar is Rengma (Option B).

Status of Tigers in India 2018 Report:

• On 29 July 2020 (Global Tiger Day), Union Environment Minister Prakash Javadekar released the detailed report titled 'Status of Tigers, Co-predators & Prey in India 2018' (4th cycle of the All India Tiger Estimation):

1. Statement 1 is correct: India is home to 70% of the global tiger population (recording 2,967 tigers, up from 2,226 in 2014), achieving the St. Petersburg target of doubling wild tiger numbers four years ahead of the 2022 deadline.
2. Statement 2 is correct: Approximately 30% (around 31%) of India's tiger population lives outside designated tiger reserves in territorial reserve forests and buffer wildlife corridors, highlighting the critical importance of landscape-level corridor conservation.

Therefore, both statements 1 and 2 are correct (Option C).

Trans-Himalayan (Antecedent) River - Sutlej:

• A Trans-Himalayan (or Antecedent) river is one whose origin lies beyond (north of) the Great Himalayan Range (Himadri) on the Tibetan Plateau, and which has maintained its course by cutting deep antecedent gorges (such as Shipki La gorge) through the rising Himalayas.
• Sutlej (B): Originates in the Trans-Himalayan zone near Lake Rakshastal (adjacent to Lake Mansarovar in Tibet) at an altitude of 4,555 m, enters India through Shipki La pass in Himachal Pradesh, and cuts across all three Himalayan ranges.
• In contrast, the Jhelum (A) originates in the Pir Panjal range (Verinag spring, Kashmir), the Ravi (D) originates near Rohtang Pass (Kullu hills, HP), and the Ganga (C) originates at Gangotri Glacier in the Greater Himalayas.

Therefore, the Trans-Himalayan river is the Sutlej (Option B).

Global Vaccine Summit (June 2020):

• On 4 June 2020, the United Kingdom (UK) hosted the virtual Global Vaccine Summit 2020.
• Chaired by British Prime Minister Boris Johnson, the summit brought together leaders from over 52 countries, international organizations, and philanthropic foundations.
• Objective: To mobilize international funding to replenish Gavi, the Vaccine Alliance for its 2021–2025 strategic period, securing over $8.8 billion to immunize 300 million children against deadly diseases in the developing world and support equitable global access to future COVID-19 vaccines (COVAX facility).
• Prime Minister Narendra Modi addressed the summit and pledged India's contribution of $15 million to Gavi.

Therefore, the summit was hosted by the United Kingdom (Option A).

Tribes and Their Locations (Incorrect Match Analysis):

• Geographical distribution of indigenous Indian tribes:

1. Angami: Prominent Naga tribe inhabiting Kohima and Dimapur districts of Nagaland (celebrating the Sekrenyi festival) -> Correctly matched.
2. Birhor: Munda-speaking tribal community found primarily in the Chota Nagpur plateau of Jharkhand and Odisha -> Correctly matched.
3. Khas: Inhabits the Himalayan foothills of Uttarakhand, Himachal Pradesh, and Western Nepal (also refers to the Khas-Arya linguistic group of Central Himalayas). Alternatively, Khasi is of Meghalaya. It has NO connection with Arunachal Pradesh -> Option C is NOT correctly matched.
4. Toda: Pastoral Dravidian tribe inhabiting the high elevations of the Nilgiri Hills in Tamil Nadu -> Correctly matched.

Therefore, Khas – Arunachal Pradesh is NOT correctly matched (Option C).

Induction of 'Sarthak' (Offshore Patrol Vessel, August 2020):

• On 13 August 2020, 'Sarthak', the fourth in the series of five Offshore Patrol Vessels (OPVs) developed for the Indian Coast Guard (ICG), was launched at Goa Shipyard Limited (GSL).
• It was built indigenously by Goa Shipyard Limited in alignment with the Prime Minister's vision of 'Make in India' / 'Atmanirbhar Bharat'.
• Sarthak is a 105-meter-long vessel displacing 2,350 tonnes, propelled by two 9,100 kW diesel engines capable of achieving a speed of 26 knots.
• Role: Maritime surveillance, search and rescue (SAR), anti-smuggling, EEZ patrolling, and ocean pollution response.

Therefore, 'Sarthak' relates to an Offshore Patrol Vessel (OPV) (Option B).

Match List: Famous Indian Lakes and Their States:

• Geographic locations of notable lakes in India:

1. Sala Lake (Sela Lake): Located at high altitude (4,170 m) near the Sela Pass in Tawang/West Kameng district of Arunachal Pradesh -> A-1.
2. Badkhal Lake: Located near Faridabad on the Aravalli foothills in Haryana -> B-2.
3. Loktak Lake: Famous freshwater lake of Manipur, renowned for floating phumdis and Keibul Lamjao National Park -> C-3.
4. Kaliveli Lake (Kazhuveli Lake): A coastal brackish water lake and wetland in the Villupuram district of Tamil Nadu (designated as a bird sanctuary in 2021) -> D-4.

Matching Code: 1 2 3 4 (Option A).

Pashu Kisan Credit Card Scheme (Haryana):

• In December 2019 / early 2020, the Government of Haryana became the first state in India to launch the 'Pashu Kisan Credit Card (PKCC)' Scheme.
• Launched by Haryana Animal Husbandry and Agriculture Minister J.P. Dalal in Bhiwani, the scheme extends the benefits of Kisan Credit Cards to animal husbandry farmers, dairy owners, and livestock breeders.
• Financial Assistance: Credit limits up to ₹1.60 lakh without collateral security at a subsidized interest rate of just 4% (with 3% prompt repayment incentive) to cover animal feed, veterinary healthcare, and maintenance costs:
• ₹40,783 for each cow
• ₹60,249 for each buffalo
• ₹4,063 for each sheep/goat

Therefore, the scheme was started by Haryana (Option B).

Assertion-Reason Analysis: Cotton Textile Industry in Ahmedabad vs Mumbai:

• Assertion (A) is false: Ahmedabad is the second largest centre of the cotton textile industry in India, affectionately called the 'Manchester of India' (or Boston of the East). The largest centre of the cotton textile industry in India has historically been and remains Mumbai (the 'Cottonopolis of India').
• Reason (R) is true: Ahmedabad is situated in the fertile Black Cotton Soil (Regur) belt of Gujarat (the Sabarmati basin), which produces vast surpluses of long-staple cotton, providing an abundant and continuous supply of local raw materials without transportation bottlenecks.
• Because (A) is factually false and (R) is true, Option D is the correct answer.

Therefore, (A) is false but (R) is true (Option D).

Inauguration of Three High-Throughput COVID-19 Testing Facilities (July 2020):

• On 27 July 2020, Prime Minister Narendra Modi virtually inaugurated three state-of-the-art High-Throughput COVID-19 testing laboratories established by the Indian Council of Medical Research (ICMR).
• The three facilities were located at:

1. Noida (at the National Institute of Cancer Prevention and Research - NICPR, Uttar Pradesh)
2. Mumbai (at the National Institute for Research in Reproductive Health - NIRRH, Maharashtra)
3. Kolkata (at the National Institute of Cholera and Enteric Diseases - NICED, West Bengal)

• Each facility had the capacity to test over 10,000 samples per day, drastically scaling up India's early diagnostic and contact-tracing infrastructure.

Therefore, the three facilities were opened in Kolkata, Mumbai, and Noida (Option B).

Youngest Mountain Range of India - The Himalayas (Himadri):

• In geological chronology, the Himalayas (Himadri / Great Himalayas) represent the youngest fold mountain system on Earth, formed during the Tertiary Period (Cenozoic Era, beginning approximately 50 to 40 million years ago) due to the ongoing tectonic collision between the Indian Plate and the Eurasian Plate.
• Characteristics of Youth: Deep V-shaped valleys, high rugged peaks, gorges, rapids, ongoing tectonic instability, and active seismic uplift.
• In contrast:
• Aravallis: Oldest fold mountain range in India (Pre-Cambrian era, over 2.5 billion years old, heavily denuded relict mountains).
• Vindhyas and Western Ghats (Sahyadri): Formed during ancient Pre-Cambrian and Mesozoic/Tertiary rifting, far older than the Himalayas.

Therefore, the youngest mountain range is the Himadri (Himalayas) (Option C).

Grant of International Status to Kushinagar Airport (June 2020):

• On 24 June 2020, the Union Cabinet chaired by Prime Minister Narendra Modi granted International Status to Kushinagar Airport in Uttar Pradesh.
• Kushinagar holds immense global significance for Buddhists worldwide as the sacred site of Lord Buddha's Mahaparinirvana (passing away and attainment of ultimate liberation).
• The international designation was aimed at providing direct, seamless air connectivity to Buddhist pilgrims and tourists arriving from East and Southeast Asian nations (including Japan, Sri Lanka, Thailand, South Korea, Cambodia, and Myanmar) across the Buddhist Circuit (Lumbini, Bodh Gaya, Sarnath, Kushinagar).
• The international airport was formally inaugurated by Prime Minister Modi on 20 October 2021 (Abhidhamma Day) with the arrival of the inaugural international flight carrying Sri Lankan dignitaries.

Therefore, the airport granted international status was Kushinagar Airport (Option D).

Match List: National Parks and Their States:

• Geographic locations of prominent Indian National Parks:

1. Indravati National Park: Located along the Indravati River in the Bastar/Bijapur district of Chhattisgarh (famous tiger reserve and wild water buffalo habitat) -> A-4.
2. Mollem National Park: Located in Sanguem taluka of Goa (encompassing the Bhagwan Mahaveer Sanctuary in the Western Ghats, near Dudhsagar Falls) -> B-3.
3. Kalesar National Park: Located in Yamunanagar district of Haryana (nestled in the Shivalik foothills near the Yamuna river) -> C-2.
4. Betla National Park (often misprinted as Betva): Located in the Chota Nagpur plateau in Latehar and Palamu districts of Jharkhand (first national park in Jharkhand, established under Project Tiger) -> D-1.

Matching Code: 4 3 2 1 (Option A).

UN Security Council Non-Permanent Member Elections (June 2020):

• On 17–18 June 2020, the United Nations General Assembly held elections for five non-permanent seats on the UN Security Council (UNSC) for the 2021–2022 two-year term.
• Election Results:

1. India: Overwhelmingly elected from the Asia-Pacific category with 184 out of 192 votes.
2. Mexico: Elected from the Latin America and Caribbean group (187 votes).
3. Norway and Ireland: Won the two seats available for the Western European and Others Group (WEOG).
4. Kenya: Won the African seat in a runoff against Djibouti.

• Canada was heavily defeated in the Western European and Others Group (WEOG) race, securing only 108 votes against Norway (130) and Ireland (128).

Therefore, the country NOT elected was Canada (Option D).

Minerals and Mining Centres (Incorrect Pairs Analysis):

• Analysis of the four mineral and mining city pairings:

1. Copper – Chitradurga: INCORRECT. Chitradurga in Karnataka is known for iron ore, manganese, and gold, NOT copper. Major copper mining centres in India are Khetri (Rajasthan), Malanjkhand (Madhya Pradesh), and Singhbhum (Jharkhand) -> Pair 1 is NOT correctly matched.
2. Iron-ore – Bellary: CORRECT. The Bellary-Hospet belt in Karnataka is one of India's richest high-grade haematite iron ore belts.
3. Bauxite – Katni: CORRECT. Katni, Jabalpur, and Balaghat in Madhya Pradesh are major bauxite producing centres.
4. Manganese – Bhilwara: INCORRECT. Bhilwara in Rajasthan is famous for mica, lead-zinc, and textiles, NOT manganese. Major manganese producing centres in India are Balaghat (MP), Nagpur-Bhandara (Maharashtra), and Keonjhar/Sundargarh (Odisha) -> Pair 4 is NOT correctly matched.

Therefore, pairs 1 and 4 are NOT correctly matched (Option D).

National Education Policy 2020 (NEP 2020):

• On 29 July 2020, the Union Cabinet approved the National Education Policy 2020 (NEP 2020):

1. Statement 1 is correct: The draft policy was prepared by the Committee for the Draft National Education Policy under the chairmanship of eminent space scientist and former ISRO chief Dr. K. Kasturirangan.
2. Statement 2 is incorrect / correct nuance: The policy replaced the previous National Policy on Education of 1986 (which was in place for 34 years, not 38 years). (Depending on question phrasing: Statement was 'It replaced the 38 year old policy' which was mathematically incorrect since 2020 - 1986 = 34 years). Hence, in UPPSC official key, statement 1 only was evaluated as correct.

Therefore, 1 only is correct (Option B / A depending on key; Statement 1 is verified fact).

Geographical Location of the Valley of Kashmir:

• The picturesque Valley of Kashmir is a longitudinal structural depression (an ancient intermontane lacustrine basin formed by the drained Lake Karewa) in Jammu and Kashmir.
• It is situated between two major Himalayan ranges:

1. The Pir Panjal Range (part of the Lesser / Middle Himalayas) to the south and southwest.
2. The Great Himalayan Range (Himadri) and the Zanskar Range to the north and northeast.

• The Jhelum river meanders across this fertile valley through Srinagar before cutting a deep gorge through the Pir Panjal at Baramulla.
• The valley is famous for its thick, fertile Karewa formations (lacustrine deposits of clay, silt, and sand) which support saffron (zafran) cultivation.

Therefore, the Valley of Kashmir is situated between the Pir Panjal and Great Himalayas (Option B).

Delhi Electric Vehicle Policy (August 2020):

• On 7 August 2020, the Government of NCT of Delhi officially notified the landmark Delhi Electric Vehicle Policy 2020.
• Announced by Chief Minister Arvind Kejriwal, the policy aimed to make Delhi the 'EV Capital of India' by ensuring that 25% of all new vehicle registrations in Delhi by 2024 are Electric Vehicles (EVs).
• Key Provisions:

1. Complete waiver of road tax and vehicle registration fees on all battery-operated electric vehicles (two-wheelers, auto-rickshaws, e-rickshaws, and cars).
2. Purchase incentives up to ₹30,000 for electric two-wheelers and three-wheelers, and up to ₹1.5 lakh for electric cars.
3. Introduction of a scrapping incentive for exchanging old polluting petrol/diesel vehicles.

Therefore, the State/UT was Delhi (Option C).

Tributaries of River Yamuna from West to East:

• The Yamuna River (the longest and right-bank tributary of the Ganga) flows across Haryana, Delhi, and Uttar Pradesh before joining the Ganga at the Triveni Sangam in Prayagraj.
• Along its right bank, the four major southern tributaries draining the Malwa and Vindhyan plateaus join the Yamuna in the following sequential order from West to East:

1. Chambal (4): Originates near Mhow in Janapav hills (MP), joins Yamuna near Bareh in Etawah/Auraiya district (UP) -> Westmost.
2. Sindh (3): Originates in Vidisha plateau (MP), flows through Gwalior and joins Yamuna in Jalaun district (UP).
3. Betwa (1): Originates in Raisen district (MP), joins Yamuna near Hamirpur (UP).
4. Ken (2): Originates in Kaimur range (Jabalpur, MP), joins Yamuna at Chilla village in Banda district (UP) -> Eastmost.

Correct West-to-East sequence: Chambal (4) -> Sindh (3) -> Betwa (1) -> Ken (2) (Option A: 4, 3, 1, 2).

Therefore, the correct arrangement is 4, 3, 1, 2 (Option A).

Rockefeller Foundation 'Food Vision 2050 Prize' (Naandi Foundation):

• In August 2020, the US-based Rockefeller Foundation announced the winners of the prestigious international 'Food System Vision 2050 Prize'.
• Hyderabad-based non-profit organization Naandi Foundation was selected as one of the 10 top global winners, receiving a cash award of $200,000.
• Award Winning Model: Naandi Foundation was recognized for its pioneering 'Arakunomics' economic model implemented in the tribal Araku region of Andhra Pradesh.
• Arakunomics successfully empowered indigenous tribal farmers through regenerative agriculture, biological diversity, agro-forestry, and ethical supply chains, creating the globally acclaimed high-grade 'Araku Coffee' while ensuring food security and ecological restoration.

Therefore, the organization was the Naandi Foundation (Option B).

Iron-Ore Producing Regions and Countries (Incorrect Match Analysis):

• Major iron-ore producing basins across the world:

1. Kazakhstan – Kostanay / Karaganda: Karaganda is primarily a major coal basin, whereas Kostanay (Sokolov-Sarbai) produces iron ore.
2. United States of America – Mesabi Range: Located in Minnesota near Lake Superior, the Mesabi Range is the world's most famous open-pit iron ore mining district -> Correctly matched.
3. Germany – Normandy: INCORRECT. Normandy is a historic province and major iron ore mining basin located in France (Lower Normandy / Calvados basin), NOT Germany. Germany's prominent iron and steel / mineral regions are the Ruhr Valley, Saar Basin, and Siegerland -> Option C is NOT correctly matched.
4. France – Lorraine: Lorraine is one of Europe's classic historical iron ore mining basins (minette ore) -> Correctly matched.

Therefore, Germany – Normandy is the incorrect pair (Option C).

First Containership from Kolkata Port to Agartala via Chattogram Port (July 2020):

• In July 2020, India and Bangladesh operationalized the landmark agreement on the usage of Chattogram (Chittagong) and Mongla Ports for transit of goods to and from India's North Eastern states.
• On 16 July 2020, Union Shipping Minister Mansukh Mandaviya flagged off the first trial container vessel (MV Trans Samudera) from Kolkata Port (Syama Prasad Mookerjee Port) carrying steel rods and pulses.
• The ship docked at Chattogram Port (Bangladesh), from where the consignment was transported by road trucks through the Akhaura-Agartala integrated check post into Agartala, Tripura.
• This route drastically reduced transit distance and time from over 1,600 km through the Siliguri chicken's neck corridor to just 500 km via Bangladesh.

Therefore, the container ship was sent through Chattogram Port (Option D).

Production of Citrus Fruits in Mediterranean Climate:

• The production of citrus fruits (such as oranges, lemons, limes, grapefruits, tangerines) along with grapes and olives is exceptionally well developed and specialized in the Mediterranean Climatic Region (Cs type in Köppen classification).
• Distinct Climatic Features of the Mediterranean Biome:

1. Hot, dry, sunny summers under the influence of subtropical high-pressure belts and offshore trade winds.
2. Mild, moist, rainy winters brought by prevailing westerly depressions.

• This unique climate prevents fungal diseases (due to dry sunny summer ripening) while providing adequate moisture during winter for fruit development.
• Major Mediterranean agricultural regions: Mediterranean Basin (Southern Europe - Spain, Italy, Greece; North Africa), Central California (Central Valley), Central Chile, Cape Town (South Africa), and South-Western Australia.

Therefore, citrus fruit production is well developed in the Mediterranean region (Option C).

National Earth System Science Award - 'Life Time Excellence Award' 2020:

• On 27 July 2020 (celebrated as the Foundation Day of the Ministry of Earth Sciences), the Ministry of Earth Sciences (MoES) announced the prestigious National Earth System Science Awards 2020.
• The 'Life Time Excellence' Award was conferred upon Professor Ashok Sahni, an internationally celebrated Indian vertebrate paleontologist and emeritus professor at Panjab University.
• Contribution: Professor Sahni was honored for his monumental research spanning five decades on the Mesozoic vertebrates of India, the Cretaceous-Paleogene boundary extinction, and the evolution of fossil vertebrates (discovering Indian dinosaur fossils, early whales, and micromammals in the Deccan Traps and Siwaliks).

Therefore, the award was conferred upon Ashok Sahni (Option A).

Match List: Tropical Cyclones and Regional Names:

• Regional nomenclature of intense tropical revolving storms across different ocean basins:

1. Baguio (Baguios): The local name for tropical cyclones in the Philippines (North-Western Pacific Ocean) -> A-3.
2. Hurricanes: Used in the North Atlantic Ocean, Caribbean Sea, Gulf of Mexico, and Eastern North Pacific, commonly affecting the United States of America -> B-4.
3. Typhoons: Used in the North-Western Pacific Ocean, specifically striking China, Japan, and Taiwan -> C-2.
4. Willy-Willies: The traditional colloquial term for tropical cyclones in North-Western Australia -> D-1.

Matching Code: 3 4 2 1 (Option B).

Eutrophication and Dissolved Oxygen Depletion in Aquatic Ecosystems:

• Statement 1 is correct: Eutrophication (from the Greek eutrophos, meaning 'well-nourished') is the ecological phenomenon of natural or artificial nutrient enrichment of a water body, primarily with excessive inputs of nitrogen (N) and phosphorus (P) from agricultural runoff (fertilizers) and domestic sewage.
• Statement 2 is correct: The massive influx of nutrients triggers rampant population explosions of phytoplankton and green algae, forming an opaque surface layer called an algal bloom. When these algal blooms die, aerobic bacteria decompose the massive organic matter, consuming immense amounts of oxygen and drastically depleting the Dissolved Oxygen (DO) in the water. This hypoxic/anoxic state leads to suffocation and mass mortality of fish and aquatic organisms.

Therefore, both statements 1 and 2 are correct (Option C).

Geographical Location of the Darling Range (Australia):

• The Darling Range (or Darling Scarp) is a low, ancient dissected mountain escarpment running north-south for approximately 320 km in Western Australia.
• It is situated parallel to and directly overlooking the South-Western Coast of Australia (extending just east of the Swan Coastal Plain and the state capital city of Perth).
• It forms the western edge of the Yilgarn Craton and is an important watershed for rivers (such as the Helena and Canning rivers) supplying water to Perth, as well as a major mining area for bauxite (e.g., Huntly and Willowdale bauxite mines).
• (Note: Do not confuse the Darling Range in Western Australia with the Darling River, which flows in south-eastern Australia through New South Wales).

Therefore, the Darling range is situated along the South-Western Coast (Option D).

Chronological Order of Major Environmental Legislation and Conservation Projects in India:

• Timeline of key Indian wildlife and environmental conservation milestones:

1. Wildlife (Protection) Act (III): Enacted in 1972 by Parliament, providing the foundational legal framework for establishing National Parks, Wildlife Sanctuaries, and prohibiting hunting of wild fauna -> 1972.
2. Project Tiger (I): Launched on 1 April 1973 at Corbett National Park under Prime Minister Indira Gandhi to arrest the precipitous decline of the Bengal tiger -> 1973.
3. Project Elephant (II): Launched in February 1992 by the Ministry of Environment and Forests to ensure long-term survival of Asian elephants and conserve migratory elephant corridors -> 1992.
4. Biological Diversity Act (IV): Enacted in 2002 to realize the commitments under the UN Convention on Biological Diversity (CBD, 1992) and establish the National Biodiversity Authority (NBA) -> 2002.

Correct Chronological Order: III, I, II, IV (Option C).

Ocean Currents Associated with the Indian Ocean (Agulhas Current):

• Ocean current classification by oceanic basin:

1. Agulhas Current (C): A major warm, western boundary surface current of the South Indian Ocean, flowing southward along the eastern coast of Mozambique and South Africa before retroflecting back into the southern Indian Ocean.
2. Canary Current: A cold, eastern boundary current flowing southwards along the northwest coast of Africa in the North Atlantic Ocean.
3. Benguela Current: A cold, eastern boundary current flowing equatorward along the southwest coast of Africa in the South Atlantic Ocean.
4. Humboldt (Peru) Current: A cold, eastern boundary current flowing northward along the western coast of South America in the South Pacific Ocean.

Therefore, the current associated with the Indian Ocean is the Agulhas Current (Option C).

Biogeochemical Cycles in Ecosystems:

• The cyclical movement and exchange of essential nutrient elements (such as carbon, nitrogen, oxygen, phosphorus, sulfur, and hydrogen) between the biotic (living organisms) and abiotic (lithosphere, atmosphere, and hydrosphere) components of an ecosystem is termed a Biogeochemical Cycle (from bio = life, geo = earth, chemical = chemical elements).
• Types of Biogeochemical Cycles:

1. Gaseous Cycles: Reservoir is the atmosphere or ocean (e.g., Carbon cycle, Nitrogen cycle, Oxygen cycle).
2. Sedimentary Cycles: Reservoir is the Earth's crust/sediments (e.g., Phosphorus cycle, Sulfur cycle).

• Energy flows unidirectionally (non-cyclic) through an ecosystem, whereas matter/nutrients circulate endlessly through biogeochemical cycles.

Therefore, the movement of nutrient elements is called a Biogeochemical cycle (Option B).

Match List: Ethnic Groups and Their Native Countries:

• Distribution of traditional ethnic groups across West Asia and North Africa:

1. Jews: The indigenous ethnoreligious group natively associated with the homeland state of Israel -> A-4.
2. Teda (Tebu / Toubou): Saharan ethnic group of nomadic pastoralists inhabiting southern Libya, northern Chad, and eastern Niger -> B-3.
3. Beja (Bja): Cushitic-speaking pastoral nomadic ethnic community inhabiting the Red Sea coastal desert region of southeastern Egypt and eastern Sudan -> C-1.
4. Lur (Lors): Major Iranian ethnic group speaking the Luri language, inhabiting the Zagros Mountain ranges of western and southwestern Iran (Luristan province) -> D-2.

Matching Code: 4 3 1 2 (Option D).

Mitti Bachao (Save the Soil) Movement in India (Hoshangabad, MP):

• The Mitti Bachao Andolan (Save the Soil Movement) in India was launched in 1977 by local farmers in Hoshangabad (now Narmada Puram) district of Madhya Pradesh.
• Cause of the Movement: The construction of the Tawa Dam on the Tawa River (a major left-bank tributary of the Narmada) led to an extensive canal network that caused severe waterlogging, soil compaction, and salinization of previously fertile black cotton soils.
• Impact: Rather than increasing farm output, the unscientific irrigation caused deep crop failures, turning lush farmlands into marshy wastelands. Led by local farmer leaders and activists, the movement mobilized under the banner 'Mitti Bachao' to demand proper drainage, organic restoration, and compensation for damaged lands.

Therefore, the movement was started in Hoshangabad, Madhya Pradesh (Option D).

African Countries and Their Capitals (Incorrect Match Analysis):

• Capital cities of African nations:

1. Morocco – Rabat: Rabat is the constitutional capital city of the Kingdom of Morocco -> Correctly matched.
2. Tunisia – Tunis: Tunis is the capital and largest city of Tunisia -> Correctly matched.
3. Algeria – Algiers: Algiers is the capital and chief seaport of Algeria -> Correctly matched.
4. Cape Verde – Bamako: INCORRECT. Bamako is the capital and largest city of Mali in West Africa. The capital of the island nation of Cape Verde (Cabo Verde) is Praia (located on the island of Santiago) -> Option D is NOT correctly matched.

Therefore, Cape Verde – Bamako is the incorrect pair (Option D).

Earth's Surface Temperature in the Absence of the Natural Greenhouse Effect:

• The natural Greenhouse Effect is a vital planetary mechanism whereby atmospheric trace gases (primarily water vapour, carbon dioxide, methane, nitrous oxide, and ozone) trap outgoing long-wave terrestrial infrared radiation, re-radiating heat back to the surface.
• Thanks to this natural blanket, Earth's current global mean surface temperature is comfortably maintained at approximately +15°C (288 K), sustaining liquid water and life.
• If the Earth had no greenhouse gases and no greenhouse effect, Earth's radiative equilibrium temperature (determined purely by incoming solar radiation and Earth's albedo of ~0.3) would drop sharply to -18°C (minus 18 degrees Celsius or ~255 K).
• Under such conditions, Earth would be a frozen, lifeless ball covered in perpetual ice.

Therefore, without the greenhouse effect, the average temperature would be -18°C (Option B).

Postmasburg Mining Region of South Africa (Manganese Production):

• Postmasburg and the adjacent Kalahari basin in the Northern Cape Province of South Africa host the world-renowned Kalahari Manganese Field (KMF).
• This region contains over 70% to 80% of the world's known economic land-based reserves of high-grade manganese ore.
• Major open-cast and underground mines in the Postmasburg-Hotazel-Black Rock belt (operated by companies like Assmang and South32) make South Africa the world's largest exporter and producer of manganese (indispensable for manufacturing steel and ferromanganese alloys).
• (The Postmasburg area also contains iron ore at Sishen, but its global geological renown and primary mineral tested is manganese).

Therefore, Postmasburg is a major producer of Manganese (Option C).

Ecological Succession and the 'Sere' (Seral Communities):

• In ecology, Ecological Succession is the predictable, directional, and sequential process of species change in an ecological community over time.
• The entire sequence of developmental communities that successively replace one another in a given area, starting from the initial colonization of barren land (pioneer community) to the final, stable climax community, is called a Sere (or Seral stages / Seral communities).
• Individual transitional communities within a sere are termed seral stages or seral communities.
• Examples of Seres:
• Hydrosere: Succession initiated in a water body.
• Xerosere / Lithosere: Succession initiated on bare rock or dry desert.
• Psammosere: Succession on sand dunes.

Therefore, the entire sequence of successively changing communities is called a Sere (Option B).

Match List: Mountains and Their Countries:

• Geographic locations of famous world mountain peaks and ranges:

1. Atlas Mountains: A prominent fold mountain system in North-Western Africa, primarily traversing Morocco (highest peak Toubkal), Algeria, and Tunisia -> A-4.
2. Kilimanjaro: An iconic dormant stratovolcano (5,895 m) and the highest peak in Africa, situated in northeastern Tanzania near the Kenyan border -> B-3.
3. Chimborazo: A massive inactive stratovolcano (6,263 m) located in the Andes of Ecuador (whose summit is the point on Earth's surface furthest from Earth's centre due to equatorial bulge) -> C-2.
4. Pyrenees: A high mountain barrier forming the natural international boundary between France and Spain (encompassing the microstate of Andorra) -> D-1.

Matching Code: 4 3 2 1 (Option A).

Presence of Iron (Fe) in Myoglobin:

• Myoglobin (D) is an iron- and oxygen-binding globular hemoprotein found abundantly in the skeletal and cardiac muscle tissues of vertebrates.
• Like hemoglobin, myoglobin contains a heme prosthetic group consisting of an organic porphyrin ring with a central Iron (Fe²⁺) atom, which reversibly binds oxygen to store it and facilitate its diffusion to muscle mitochondria during cellular respiration.
• Comparative composition of other substances:
• Chlorophyll: Contains Magnesium (Mg²⁺) at the centre of its porphyrin ring (chlorin ring).
• Collagen: Fibrous structural protein composed of amino acids (glycine, proline, hydroxyproline), containing NO metal atom.
• Keratin: Structural fibrous protein rich in cysteine (sulfur), forming hair and nails, containing NO iron.

Therefore, the natural substance containing iron is Myoglobin (Option D).

Kinta Valley in Malaysia (Tin Mining Production):

• The Kinta Valley (located in the state of Perak, West Malaysia, centered around the city of Ipoh) is historically the world's most famous and richest Tin Mining Basin.
• Beginning in the late 19th century, massive alluvial placer deposits of cassiterite (tin oxide ore) were discovered along the Kinta River, prompting large-scale mining operations and Chinese labor migration, which propelled Malaysia to become the world's leading producer and exporter of tin for over a century.
• (While Malaysia also produces rubber and palm oil, the specific global economic identity of the Kinta Valley is unequivocally Tin Production).

Therefore, the Kinta Valley is famous for Tin Production (Option C).

Mutation - Alteration in Gene Base Sequence:

• In genetics and molecular biology, a permanent change in the nucleotide base sequence of DNA within a gene is called a Mutation.
• Mechanisms of Mutation:

1. Point Mutation: Substitution of a single nitrogenous base pair (e.g., transition or transversion), such as the GAG-to-GTG point mutation in the beta-globin gene causing sickle cell anemia.
2. Frameshift Mutation: Insertion or deletion of one or more base pairs, shifting the entire translational reading frame.

• Mutations can occur spontaneously due to replication errors or be induced by physical/chemical mutagens (UV radiation, X-rays, chemical carcinogens).
• (Cloning is asexual reproduction of genetically identical copies; Recombination is the reshuffling of existing genetic material during meiosis).

Therefore, the change in base sequence within a gene is called Mutation (Option A).

Countries Traversed by the Equator (Africa):

• The Equator (0° latitude) passes through exactly 13 countries worldwide, of which 7 are in Africa:

1. São Tomé and Príncipe
2. Gabon (1) -> Equator passes through
3. Republic of the Congo
4. Democratic Republic of the Congo
5. Uganda
6. Kenya
7. Somalia (2) -> Equator passes through

• Analysis of the non-equatorial countries in the question:
• Equatorial Guinea (3): Despite its confusing name, mainland Equatorial Guinea (Río Muni) lies just north of the equator (between 1°N and 2°N), while its island of Annobón lies to the south (1°25'S). The Equator does NOT pass through its landmass.
• Rwanda (4): Lies entirely in the Southern Hemisphere between 1°S and 3°S latitude. The Equator does NOT pass through Rwanda.

Therefore, the Equator does NOT pass through 3 and 4 (Option D).

Use of Photoelectric Cells (Photo Cells) in Fire and Smoke Alarms:

• In modern fire and smoke detectors, Photo cells (Photoelectric cells) are the primary technological component used in optical/photoelectric smoke alarms.
• Working Principle of Photoelectric Smoke Detectors:

1. Inside the detector's sensor chamber, a light source (infrared LED) and a photo cell (photodiode/phototransistor) are positioned at an angle (usually 90°) to each other so that the light beam normally does not strike the photo cell.
2. When smoke particles from a fire enter the optical chamber, they scatter and reflect the light beam onto the photo cell (Tyndall scattering effect).
3. The light hitting the photo cell generates an electrical current (photoelectric effect), which immediately triggers the integrated circuit to sound the fire alarm.

Therefore, the component used in fire alarms is the Photo cell (Option A).

Constitutional Provisions for Panchayati Raj - Part IX:

• The provisions for the Panchayati Raj System are enshrined in Part IX of the Constitution of India, titled 'The Panchayats'.
• Legislative Background:
• Inserted by the landmark 73rd Constitutional Amendment Act, 1992 (which came into force on 24 April 1993, commemorated as National Panchayati Raj Day).
• Part IX comprises Articles 243 to 243-O.
• It established a uniform three-tier Panchayati Raj structure across states: Gram Panchayat (village level), Panchayat Samiti / Kshetra Panchayat (intermediate block level), and Zilla Parishad (district level).
• The 73rd Amendment also added the Eleventh Schedule containing 29 functional subjects devolved to Panchayats.
• (Note: Part IX-A covers Municipalities, Part IX-B covers Co-operative Societies, and Part IV Article 40 is the DPSP directing the state to organize village panchayats).

Therefore, the provisions are in Part IX (Option A).

Polymer Classification: Thermoplastics vs Thermosetting Elastomers (Neoprene):

• In polymer chemistry, polymers are classified based on their response to thermal heating:

1. Thermoplastics: Linear or slightly branched long-chain polymers held together by intermolecular forces that soften reversibly upon heating and harden on cooling, allowing them to be repeatedly remelted and reshaped:

• Polythene (Polyethylene) -> Thermoplastic
• Polystyrene -> Thermoplastic
• Teflon (Polytetrafluoroethylene - PTFE) -> Thermoplastic
• PVC, Polypropylene, Nylon -> Thermoplastics

1. Thermosetting Polymers / Synthetic Elastomers (Neoprene): Neoprene (polychloroprene) is a synthetic rubber (elastomer) produced by the polymerization of 2-chloro-1,3-butadiene (chloroprene). It undergoes irreversible cross-linking (vulcanization with metal oxides like ZnO and MgO). Once vulcanized and set, it CANNOT be repeatedly melted and reshaped upon heating.

Therefore, Neoprene is NOT a thermoplastic (Option B).

Addition of the Third Tier to the Indian Federal System (1992):

• The Indian Constitution originally established a dual federal structure comprising two levels of governance: the Union (Central) Government and the State Governments.
• The 'Third Tier' of local self-government (Panchayats in rural areas and Municipalities in urban areas) was constitutionally added to the Indian federal system through the 73rd and 74th Constitutional Amendment Acts, passed by Parliament in December 1992 under the Prime Ministership of P.V. Narasimha Rao.
• Significance of the 1992 Amendments:
• 73rd Amendment Act, 1992: Inserted Part IX (Articles 243 to 243-O) and the 11th Schedule for Panchayats.
• 74th Amendment Act, 1992: Inserted Part IX-A (Articles 243-P to 243-ZG) and the 12th Schedule for Municipalities.
• (While the Acts came into force in 1993, the Acts are officially named and cited as the 1992 Amendments, which is the year recognized in the official UPPSC key).

Therefore, the third tier was added in 1992 (Option C).

Digestion of Protein in the Human Body (Stomach):

• In the human digestive system, chemical digestion of proteins begins in the Stomach.
• Enzymatic Mechanism in the Stomach:

1. The gastric glands in the stomach mucosa secrete gastric juice containing hydrochloric acid (HCl) and the inactive proenzyme pepsinogen.
2. Hydrochloric acid (pH 1.5–2.0) converts inactive pepsinogen into active pepsin.
3. Pepsin is an endopeptidase that hydrolyzes complex dietary proteins into smaller polypeptide fragments: proteoses and peptones.
4. (In infants, the enzyme rennin also curdles milk protein casein).

• (Note: Carbohydrate digestion begins in the mouth with salivary amylase, but NO protein digestion occurs in the mouth or esophagus. Protein digestion is subsequently completed in the small intestine by pancreatic trypsin/chymotrypsin and intestinal peptidases).

Therefore, protein digestion begins in the Stomach (Option B).

Scope of Article 3 vs Article 2 of the Indian Constitution:

• Article 3 of the Constitution empowers the Parliament of India by law to reorganize the internal map of existing constituent units of the Indian Union:
• Article 3(a): Formation of a new State by separation of territory from any State or by uniting two or more States (Option A).
• Article 3(b): Increase the area of any State.
• Article 3(c): Diminish the area of any State (Alteration of areas - Option B).
• Article 3(d): Alter the boundaries of any State (Option C).
• Article 3(e): Alter the name of any State.
• Admission of new States (Option D): This is NOT governed by Article 3. The admission or establishment of new States that were NOT previously part of the territory of India (e.g., Sikkim in 1975, or French/Portuguese enclaves) is exclusively governed by Article 2 ('Admission or establishment of new States').

Therefore, Admission of new States is NOT possible under Article 3 (Option D).

Health Hazard of Consuming Polished Rice - Beri-Beri:

• The prolonged consumption of polished rice (white rice) as the primary dietary staple causes the deficiency disease Beri-Beri.
• Scientific Mechanism:

1. During modern mechanical milling and polishing of paddy, the outer husk, the nutrient-rich bran layer (pericarp), and the aleurone layer / embryo germ are removed to give the grain a pearly white finish and extend shelf life.
2. The bran and aleurone layers contain the vast majority of the grain's Thiamine (Vitamin B1).
3. Severe Thiamine deficiency impairs carbohydrate metabolism and the Krebs cycle, damaging the peripheral nervous system and cardiovascular system, leading to:

• Dry Beri-beri: Peripheral neuropathy, muscle wasting, and partial paralysis.
• Wet Beri-beri: Dilated cardiomyopathy, edema, and high-output heart failure.
• (Pellagra is caused by Niacin/B3 deficiency; Scurvy by Vitamin C deficiency; Rickets by Vitamin D deficiency).

Therefore, the disease caused is Beri-beri (Option D).

Removal of Officials and Role of Parliament (Chairman, UPSC):

• Role of Parliament in the removal of high constitutional functionaries:

1. Judges of the High Court (1): Removed by the President under Article 217(1) read with Article 124(4) only after an address by each House of Parliament supported by a special majority on grounds of proved misbehavior or incapacity.
2. Judges of the Supreme Court (2): Removed by the President under Article 124(4) only after an address by Parliament supported by a special majority.
3. Comptroller and Auditor General of India (CAG) (4): Under Article 148(1), removed in the like manner and on like grounds as a Judge of the Supreme Court (i.e., through Parliament).
4. Chairman of the Union Public Service Commission (3): Under Article 317, the Chairman or any Member of the UPSC is removed by the President on grounds of misbehavior ONLY after the Supreme Court, on a presidential reference, conducts an inquiry and recommends removal. Parliament plays absolutely NO role in the removal of the UPSC Chairman.

Therefore, Parliament plays no role in the removal of 3 only (Option D).

Vitamin Responsible for Blood Coagulation - Vitamin K:

• Vitamin K (Phylloquinone / Naphthoquinone group) is the fat-soluble vitamin primarily responsible for normal blood clotting (coagulation) in the human body.
• Biochemical Mechanism in the Liver:

1. Vitamin K functions as an indispensable cofactor for the enzyme gamma-glutamyl carboxylase in hepatocytes.
2. This enzyme carboxylates glutamic acid residues, enabling the post-translational hepatic synthesis of essential blood clotting factors:

• Factor II (Prothrombin)
• Factor VII (Proconvertin)
• Factor IX (Christmas factor)
• Factor X (Stuart-Prower factor)

1. Without Vitamin K, prothrombin cannot bind calcium ions (Ca²⁺) to convert into thrombin, prolonging prothrombin time (PT) and causing severe, uncontrollable hemorrhaging/bleeding from minor injuries.

Therefore, the vitamin responsible for blood coagulation is Vitamin K (Option D).

Constitutional Authority for Panchayat Elections - State Election Commission:

• Under Article 243K(1) of the Constitution of India (inserted by the 73rd Constitutional Amendment Act, 1992):

> "The superintendence, direction and control of the preparation of electoral rolls for, and the conduct of, all elections to the Panchayats shall be vested in a State Election Commission consisting of a State Election Commissioner to be appointed by the Governor."

• Article 243ZA similarly vests the superintendence, direction, and control of all municipal elections in the same State Election Commission.
• Crucial Distinction:
• The Election Commission of India (ECI) under Article 324 is responsible ONLY for elections to Parliament (Lok Sabha & Rajya Sabha), State Legislative Assemblies and Councils, and the offices of President and Vice-President.
• The ECI has NO constitutional role in conducting Panchayat or Municipal elections; that power is exclusively entrusted to the State Election Commission.

Therefore, the powers are vested in the State Election Commission (Option D).

Functions of the Human Brain:

• The human brain controls and coordinates all physiological, autonomic, and voluntary motor activities in the body:

1. Regulating the heartbeat (Statement 1 is correct): The medulla oblongata (hindbrain) contains the cardiac reflex center, which regulates heart rate and stroke volume via sympathetic and parasympathetic (vagus nerve) impulses.
2. Regulating breathing / respiration (Statement 2 is correct): The respiratory rhythm center in the medulla oblongata and the pneumotaxic/apneustic centers in the pons varolii regulate the rate and depth of respiration in response to blood pCO2 and H+ concentrations.
3. Balancing the body (Statement 3 is correct): The cerebellum (hindbrain), along with the vestibular apparatus (semicircular canals) of the inner ear, maintains posture, muscular coordination, and equilibrium/balance.

Therefore, the brain is responsible for 1, 2, and 3 (All) (Option C / Option D depending on code; Both 1 and 2, and balancing the body are all true).

Constitutional Bodies and Articles (Question 102 Analysis):

• Constitutional provisions for key Indian commissions and bodies:
• Inter-State Council: Governed by Article 263 (established by Presidential order in 1990 following Sarkaria Commission recommendations) -> Correctly matched.
• Finance Commission: Governed by Article 280 (constituted every 5 years by the President) -> Correctly matched.
• Union Public Service Commission (UPSC): Governed by Article 315 (Public Service Commissions for the Union and States) -> Correctly matched.
• Administrative Tribunals: Authorized by Article 323A (inserted by the 42nd Constitutional Amendment Act, 1976).
• In the official UPPSC answer key, Option C ('Administrative Tribunal – Article 323A') was marked as the answer (likely intended by the paper-setter due to confusion between Article 323A and 323B, or a typographical drafting error in the original question).

Therefore, based on the official UPPSC key, the answer is Option C.

Plant Source of Asafoetida (Hing):

• Asafoetida (Hing) is an oleo-gum-resin extracted from the exudates of the living taproots and rhizomes of several species of the perennial herbaceous plant Ferula (primarily Ferula assa-foetida and Ferula foetida, belonging to the Umbelliferae / Apiaceae family, native to the arid mountains of Iran and Afghanistan).
• The root is incised, and the milky latex exudes and hardens into a reddish-brown resin that is dried and powdered with starch/wheat flour for culinary and Ayurvedic medicinal use (carminative, digestive, antispasmodic).
• In contrast, other substances like synthetic resins, chemical tars, or synthetic gums are produced industrially.

Therefore, the substance obtained directly from a tree/plant root is Asafoetida (Hing) (Option A).

Constitutional Status of the Central Vigilance Commission (CVC):

• The Central Vigilance Commission (CVC) is the apex integrity and anti-corruption institution in the Government of India.
• Creation and Legal Status:

1. CVC was initially set up by an executive resolution of the Government of India in February 1964 on the recommendations of the Committee on Prevention of Corruption, chaired by K. Santhanam.
2. Following the Supreme Court's judgment in the Vineet Narain case (1997), Parliament enacted the Central Vigilance Commission Act, 2003, conferring statutory status upon the CVC.
3. No Constitutional Article: The CVC is NOT mentioned in any Article of the Constitution of India; it is purely a statutory body, NOT a constitutional body.

Therefore, None of the above (None of these articles) describes the CVC (Option D).

Assertion-Reason Analysis: Sweetness and Hydrolysis of Invert Sugar:

• Assertion (A) is true: Invert sugar is sweeter than ordinary table sugar (sucrose). On the relative sweetness scale (where sucrose = 100), glucose has a sweetness index of ~74, while fructose has a sweetness index of ~173. Because invert sugar contains 50% free fructose and 50% free glucose, its net relative sweetness is approximately 120–130, making it noticeably sweeter than sucrose.
• Reason (R) is true: Invert sugar is produced industrially by the acidic or enzymatic hydrolysis of sucrose (using the enzyme invertase or dilute acid), breaking down sucrose into an equimolar mixture of D-glucose and D-fructose. It is called 'invert' sugar because this hydrolysis causes an optical inversion of specific rotation from dextrorotatory (+66.5°) to levorotatory (-22°).
• Explanation: While (R) correctly explains how invert sugar is chemically obtained and why it contains fructose, the scientific reason why it is sweeter is the exceptionally high relative sweetness of free fructose compared to sucrose. Hence, in standard evaluation, (R) is a true factual statement, but does not provide the direct biochemical rationale for relative sweetness.

Therefore, both (A) and (R) are true but (R) is not the correct explanation of (A) (Option B).

Chronological Order of Chairpersons of the National Commission for Women (NCW):

• The National Commission for Women (NCW) was established as a statutory body in January 1992 under the National Commission for Women Act, 1990.
• Chronological tenure of the four Chairpersons listed:

1. Jayanti Patnaik (1): The First Chairperson of the NCW, serving from 3 February 1992 to 30 January 1995 -> (1).
2. Dr. V. Mohini Giri (4): The Second Chairperson, serving from 21 July 1995 to 20 July 1998 -> (4).
3. Dr. Poornima Advani (3): The Fourth Chairperson, serving from 25 January 2002 to 24 January 2005 (succeeding Vibha Parthasarathi) -> (3).
4. Mamta Sharma (2): The Seventh Chairperson, serving from 2 August 2011 to 1 August 2014 -> (2).

Correct Chronological Order: 1, 4, 3, 2 (Option D).

Therefore, the correct chronological sequence is 1, 4, 3, 2 (Option D).

Match List: Metals and Their Physical/Chemical Properties:

• Distinctive properties of chemical metals:

1. Sodium: An alkali metal so soft that it can be easily cut with a knife (has a very low density and can be sliced like cold butter; stored in kerosene due to violent reactivity with air/water) -> A-4.
2. Mercury: The only metal that is liquid at room temperature (has a melting point of -38.83°C, widely used in liquid-in-glass thermometers) -> B-2.
3. Silver: Possesses the highest electrical conductivity and highest thermal conductivity of any known metal, making it the premier good conductor of electricity -> C-1.
4. Lead: A heavy metal characterized by very low thermal conductivity among metals, functioning as a notoriously poor conductor of heat -> D-3.

Matching Code: 4 2 1 3 (Option C).

Article 371-J and Special Status for Hyderabad-Karnataka Region:

• Article 371-J was inserted into Part XXI of the Constitution of India by the 98th Constitutional Amendment Act, 2012 (which came into effect on 1 January 2013).
• It confers special developmental provisions and constitutional empowerment for the backward Hyderabad-Karnataka region (now renamed Kalyana-Karnataka), comprising six districts of Karnataka: