GS Paper 1 practice questions for UPSC Mains 2026.

Introduction: The 1857 Revolt began at Meerut on 10 May 1857 and spread across the Doab. Two competing readings — sepoy mutiny vs first war of independence — frame the historiographical debate.

Body — weigh evidence: (1) For ‘old order’ reading: leadership of Bahadur Shah II, Nana Saheb, Begum Hazrat Mahal, Rani Laxmibai — dispossessed feudal classes; grievances against Doctrine of Lapse (Jhansi, Satara, Awadh annexation 1856); confinement to Hindi belt, no participation from Madras, Bombay, Punjab Sikh rulers. (2) For ‘first war’ reading: V.D. Savarkar’s 1909 thesis, S.B. Chaudhuri’s social uprising thesis, Hindu-Muslim joint cause around the Emperor, mass civilian participation in Awadh and Rohilkhand. (3) Verdict: Bipan Chandra — it was neither a mutiny nor a national war, but a popular revolt without a national consciousness.

Conclusion: 1857 was a transformative inflection point — Crown Rule, end of EIC, Queen’s Proclamation 1858 — even if not yet national.

Introduction: The ICAR-NBSS&LUP classifies Indian soils into eight major orders; four account for almost the whole cropped area.

Body — three dimensions: (1) Alluvial — Indo-Gangetic plain, khadar and bhangar, supports wheat-rice cropping in Punjab, Haryana, UP. (2) Black or regur — Deccan Trap weathering, montmorillonite clay, self-ploughing, supports cotton in Maharashtra, Gujarat, MP. (3) Red and laterite — leached, iron-rich, low fertility, on Tamil Nadu, Karnataka, Kerala uplands; laterites support cashew and rubber. (4) Limits: soil erosion (5.3 billion tonnes/year per ICAR), salinity in canal-irrigated Punjab, organic carbon below 0.5% in over 60% of districts.

Conclusion: The Soil Health Card Scheme (2015) is the policy attempt to match crop choice to soil reality.

Introduction: At independence India inherited 565 princely states under the doctrine of paramountcy lapsed by the Indian Independence Act 1947.

Body — three dimensions: (1) Instrument of Accession: signed by all but three rulers by 15 August 1947; V.P. Menon as Patel’s draftsman. (2) Hard cases: Junagadh — plebiscite, February 1948; Hyderabad — Operation Polo, 13–18 September 1948; Jammu and Kashmir — accession on 26 October 1947 after tribal invasion. (3) Method: persuasion plus privy purses (abolished 1971 by 26th Amendment), conversion of states into Part B states (1950) then full reorganisation in 1956.

Conclusion: Patel’s integration converted a patchwork of princely sovereignties into a single constitutional union, without which the Constitution of 1950 could not have functioned.

Introduction: India’s rivers fall into two systems shaped by the country’s split physiography — young Himalayas in the north, ancient Deccan plateau in the south.

Body — three dimensions: (1) Origin and age: Himalayan rivers are antecedent, predating Himalayan uplift (Indus, Brahmaputra cut transverse gorges); Peninsular rivers (Godavari, Krishna, Cauvery) flow on a pre-Cambrian plateau. (2) Hydrology: Himalayan rivers are perennial — snowmelt plus monsoon; Peninsular are seasonal, monsoon-fed, with deep gradient-graded courses. (3) Economic value: Himalayan rivers supply 80% of India’s usable surface water, support Indo-Gangetic agriculture, hydropower potential; Peninsular rivers support irrigation in deltas (Krishna-Godavari, Cauvery), inland navigation limited.

Conclusion: The two drainage systems sit behind India’s most political river disputes — Indus Waters Treaty (1960), Cauvery Tribunal, Krishna allocation — because their hydrology defines who has water to share.

Introduction: The Indian Ocean accounts for around 7% of global cyclones, but the Bay of Bengal’s share of cyclones is roughly four times that of the Arabian Sea.

Body — three dimensions: (1) Physical reasons: warmer Bay SSTs above 28°C through year, low salinity from Ganga-Brahmaputra freshwater inflow boosting stratification, funnel-shaped coastline at the head of Bay amplifying storm surges. (2) Human reasons: high population density on Bengal-Odisha coast, low-lying delta of the Sundarbans, weaker housing stock; Andhra-Tamil Nadu coast densely settled. (3) Arabian Sea trend: warming has produced Ockhi 2017, Tauktae 2021, Biparjoy 2023 — IITM Pune attributes a 52% rise in intense Arabian Sea cyclones since 1982 to Indian Ocean warming.

Conclusion: Coastal vulnerability is rising on both seaboards; the IMD-NDMA Multi-Hazard Early Warning System and Odisha’s near-zero-death cyclone shelters offer the operational model.

Introduction: The Chota Nagpur Plateau, covering Jharkhand and parts of Odisha, Chhattisgarh, West Bengal and Bihar, hosts India’s densest concentration of mineral reserves and its largest tribal population belt.

Body — three dimensions: (1) Mineral base: Jharia and Bokaro coalfields, Singhbhum copper belt, Noamundi iron ore, Hazaribagh mica, Kodarma bauxite — over 40% of India’s mineral reserves by value. (2) Tribal heartland: Santhal, Munda, Oraon and Ho communities; Birsa Munda’s Ulgulan, 1899–1900; the Santhal Hool, 1855–56. (3) Conflict overlay: Forest Rights Act 2006 implementation, displacement from Jharia coalfield, Niyamgiri verdict (2013) on Vedanta and the Dongria Kondh, the protracted left-wing extremism corridor.

Conclusion: The plateau is where India’s resource economy and constitutional commitments to Scheduled Tribes are tested in the same square kilometres.

Introduction: The Third Battle of Panipat, 14 January 1761, between the Marathas under Sadashivrao Bhau and Ahmad Shah Abdali, ended Maratha primacy in north India for a decade.

Body — three dimensions: (1) Tactical errors: Bhau's heavy gun-and-baggage column was unsuited to fast cavalry warfare on Doab plains; the Maratha army of around 1.5 lakh, including pilgrims and camp followers, lost mobility. (2) Diplomatic isolation: alienation of Rohillas under Najib-ud-daula, failure to retain Awadh's Shuja-ud-daula, no Sikh or Jat alliance — Suraj Mal Jat withdrew over command disputes. (3) Strategic failure: the Marathas had treated north India as a tribute zone rather than building a federal polity; Peshwa Balaji Bajirao at Pune could not respond in time; Vishwasrao and Bhau both died.

Conclusion: Panipat 1761 broke Maratha imperial confidence; even after the Treaty of Salbai (1782) ended the First Anglo-Maratha War, the confederacy faced the British without a unified north Indian base.

Introduction: The Santhal Hool of 30 June 1855 in the Damin-i-Koh region of present Jharkhand was led by Sido and Kanhu Murmu against dikus — outsider moneylenders, zamindars and Company officials.

Body — three dimensions: (1) Causes: Permanent Settlement had pushed Bengali zamindars and Bihari moneylenders into Santhal Pargana; usurious interest converted Santhal labour into bonded servitude (kamioti); revenue extraction by the Company. (2) Course: 30 June 1855 gathering at Bhognadih; declaration of self-rule; 60,000 Santhals mobilised; British declared martial law November 1855; suppressed by March 1856 with around 15,000–20,000 dead. (3) Aftermath and significance: creation of Santhal Pargana district 1856 with non-regulation status; protective tenancy law later codified in Santhal Pargana Tenancy Act 1876; inspired Birsa Munda's Ulgulan (1899–1900); Ranajit Guha's 'Elementary Aspects of Peasant Insurgency' treats it as paradigmatic.

Conclusion: The Hool foreshadowed every subsequent adivasi assertion in the Chota Nagpur Plateau and helped frame the protective tribal-land regime that survives in the Fifth Schedule.

Introduction: On 4 February 1922, at Chauri Chaura in Gorakhpur, a Congress procession was fired on; the crowd retaliated, burning a police station and killing 22 policemen. Gandhi withdrew the Non-Cooperation Movement on 12 February 1922.

Body — three dimensions: (1) Withdrawal logic: Gandhi's commitment to ahimsa as non-negotiable; fear that mass violence would invite repression and lose moral legitimacy; Bardoli Resolution suspending the movement. (2) Tactical failure: provoked Motilal Nehru, C.R. Das, Subhas Bose to break away into Swaraj Party (1923) for council entry; Khilafat movement collapsed; Hindu-Muslim solidarity began to fray. (3) Strategic insight: prepared the cadre for disciplined satyagraha, leading to Bardoli (1928), Civil Disobedience (1930) — Shahid Amin's 'Event, Metaphor, Memory' shows the local memory of Chauri Chaura was reclaimed differently by national narrative.

Conclusion: The withdrawal was unpopular but established the Gandhian principle that the method must remain non-violent even when the masses outrun the leader.

Introduction: The Self-Respect Movement was launched by E.V. Ramaswamy 'Periyar' in 1925 in the Madras Presidency, after he broke from the Congress at the Kanchipuram conference over the Vaikom Satyagraha and Brahmin domination.

Body — three dimensions: (1) Ideology: rationalist critique of caste hierarchy; rejection of Brahminism as a structure not a community; gender equality; atheism or non-theistic ethics; Suya Mariyathai Iyakkam ('self-respect') as freedom from inherited subordination. (2) Methods: Suya Mariyathai marriages without Brahmin priests (Madras Marriage Validation Act 1968 later legalised them); inter-caste dining; widow remarriage; women's right to education and divorce; pamphlets in Tamil through Kudi Arasu (1925) and Viduthalai (1937). (3) Political legacy: merger with Justice Party in 1944 forming Dravidar Kazhagam; ideological parent of DMK (1949) and later AIADMK (1972); shaped Tamil Nadu's reservation policy — 69% reservation upheld through inclusion in Ninth Schedule.

Conclusion: The Self-Respect Movement converted social reform into a political programme that the Republic of India has had to accommodate through constitutional special provisions.

Introduction: Three full wars (1947–48, 1965, 1971) and one limited conflict (Kargil 1999) define India-Pakistan military history and the evolving Indian strategic doctrine.

Body — three dimensions: (1) 1947–48 Kashmir war: tribal-Pakistani invasion of October 1947; Maharaja Hari Singh's Instrument of Accession 26 October 1947; UN ceasefire 1 January 1949; established the Line of Control framework. (2) 1965 war: triggered by Operation Gibraltar; Indian counter-offensive in Punjab; Tashkent Declaration 10 January 1966 brokered by USSR; Lal Bahadur Shastri's coining of 'Jai Jawan Jai Kisan'. (3) 1971 Bangladesh war: Mukti Bahini, Indian intervention 3–16 December 1971; 93,000 Pakistani POWs; Indo-Soviet Treaty August 1971; Shimla Agreement 2 July 1972 converted ceasefire line into LoC and made Kashmir a strictly bilateral issue.

Conclusion: The wars established three doctrinal pillars — non-alignment with strategic autonomy, decisive conventional response, and post-1974 nuclear preparedness leading to Pokhran II in 1998.

Introduction: A cloudburst is defined by IMD as rainfall above 100 mm in an hour over a small area (10 sq km). Himalayan cloudbursts are concentrated in July–September.

Body — three dimensions: (1) Physical causation: orographic lifting along Lesser and Greater Himalaya, moisture supply from south-west monsoon and western disturbances, urbanisation of hill slopes; rising upper-tropospheric temperature with climate change increases moisture-holding capacity (about 7% per °C, Clausius-Clapeyron). (2) Recent events: Kedarnath 16–17 June 2013 (over 5,000 deaths); Leh 5 August 2010; Chamoli 7 February 2021 (combined glacial-cloudburst event); Wayanad landslide 30 July 2024 in Western Ghats; Sikkim glacial lake outburst flood October 2023. (3) Policy framework: C-FLOOD model (CWC); NDMA Cloudburst Guidelines 2020; INSAT-3DS imagery; National Mission for Sustaining Himalayan Ecosystem (one of eight NAPCC missions); Doppler radars deployed in Mukteshwar, Kufri, Joshimath; but sub-district resolution forecasts still patchy.

Conclusion: The Disaster Management Amendment Act 2024 mandates State Disaster Mitigation Funds — implementation will determine whether Himalayan communities live with these events or face them blind.

Introduction: India is one of 17 megadiverse countries and contains four of the world's 36 biodiversity hotspots — Western Ghats, Himalaya, Indo-Burma and Sundaland (Nicobar group).

Body — three dimensions: (1) Western Ghats: 1,600 km Tapi to Kanyakumari; UNESCO World Heritage 2012; 7,402 plant species, 139 mammals; endemism over 30% in amphibians; Gadgil Report 2011 vs Kasturirangan Report 2013 on ESA. (2) Eastern Himalaya: Nepal-Sikkim-Arunachal-Northeast; over 10,000 plant species; key reserves — Kanchenjunga, Namdapha, Sikkim Biosphere Reserve; threatened by hydroelectric projects (Lower Subansiri). (3) Indo-Burma: Northeast hills and Manipur, Mizoram, southern Yunnan; Hoolock gibbon, Mizo wild orange — under jhum cultivation pressure. (4) Sundaland (Nicobar Islands): Great Nicobar — Nicobar megapode, Nicobari shrew, leatherback turtle nesting; threatened by Great Nicobar Holistic Development project. Common policy: Biological Diversity Act 2002 (NBA, SBB, BMC); 2023 Amendment eases ABS compliance.

Conclusion: Each hotspot needs region-specific governance; centralised Biodiversity Act framework requires careful state-level implementation, especially after the 2023 amendment.

Introduction: India committed at COP-26 (Glasgow, November 2021) to 500 GW of non-fossil capacity by 2030 and net-zero by 2070. Solar is the principal vehicle.

Body — three dimensions: (1) Targets: Jawaharlal Nehru National Solar Mission 2010 (revised to 100 GW by 2022); installed solar capacity reached 90 GW by early 2024 and is targeted at 280–300 GW of the 500 GW non-fossil portfolio; PM-Surya Ghar Muft Bijli Yojana (February 2024) targets one crore rooftop systems. (2) Geography of deployment: Rajasthan (Bhadla Solar Park 2,245 MW — world's largest single site), Gujarat (Khavda Renewable Energy Park, projected 30 GW), Karnataka (Pavagada 2,050 MW), Tamil Nadu (Kamuthi 648 MW). Concentration in Deccan and Thar reflects irradiance >5.5 kWh/sq m/day. (3) Technical bottlenecks: land acquisition (5 acres per MW); grid integration and balancing for variability; import dependence on Chinese modules (mitigated by ALMM and PLI for solar PV manufacturing 2021, 2023); energy storage gap (battery and pumped hydro); transmission constraints (Green Energy Corridor, two phases).

Conclusion: Solar geography rewards Rajasthan-Gujarat-Karnataka triangle; eastern India must build complementary wind and pumped-hydro to ensure energy security across the grid.

Introduction: NFHS-5 (2019-21) put India's TFR at 1.9 against the replacement rate of 2.1; the country crossed below replacement around 2020 even as the working-age (15–59) share continues to rise — the demographic momentum effect.

Body — three dimensions: (1) Lag mechanics — past high fertility produced today's youth bulge; median age is 28.4 (UNFPA 2023), working-age population peaking around 2041. (2) Heterogeneity — Bihar TFR 3.0, UP 2.4, vs Kerala 1.8, Tamil Nadu 1.8; the dividend is regionally uneven. (3) Risks — jobless growth, FLFPR jumped from 23.3% (PLFS 2017-18) to 41.7% (PLFS 2023-24) but mostly in unpaid self-employment.

Conclusion: The window closes by 2055 (SRS 2024 trajectory). Without a skilling and care-economy push, India risks ageing before it gets rich.

Introduction: The Census defines an urban settlement as a place with 5,000+ population, density 400/km², 75% male non-agricultural workforce — or any statutory town. ‘Census towns’ have grown faster than statutory towns since 2001.

Body — three dimensions: (1) Pace — urban share 17.3% (1951) → 27.8% (2001) → 31.16% (Census 2011); UN World Urbanisation Prospects projects 50.3% by 2050. (2) Driver mix — rural distress migration (NSSO 64th round), small-town informal sector, peri-urban land conversion. (3) Definitional gap — the 5,000-population cut-off undercounts as ‘rural’ areas with truly urban character, especially in Kerala and Tamil Nadu; over 3,892 census towns lack ULB governance.

Conclusion: Re-categorise census towns as ULBs (74th Amendment), update definitions and prepare master plans before 2027 enumeration locks in undercounted urban needs.

Introduction: Distinguish regionalism (loyalty to a sub-national region) from secessionism. Frame three forms: linguistic/cultural, resource-based, identity-based.

Body — three dimensions: (1) Sub-state autonomy — Telangana statehood 2 June 2014 after agitation since 1969; Vidarbha, Bodoland, Gorkhaland; Article 371-A through 371-J special provisions. (2) Resource disputes — Cauvery (Karnataka–Tamil Nadu), Krishna (Telangana–Andhra), Mahanadi (Odisha–Chhattisgarh), Sutlej-Yamuna Link (Punjab–Haryana). (3) Sixth Schedule — Bodoland Territorial Region 2003, Karbi Anglong Autonomous Council; Ladakh's demand for Sixth Schedule status since 2019.

Conclusion: Linguistic federalism (Fazl Ali Commission 1955), the Inter-State River Water Disputes Act, 1956 and the Sixth Schedule are the constitutional answers — they manage regionalism but cannot dissolve the grievances that fuel it.

Introduction: India counts persons with disabilities at 2.68 crore (Census 2011, 2.21%); NSO 76th round (2018) again 2.2%. WHO 2022 global figure is roughly 16% — India counts about one-seventh.

Body — three dimensions: (1) Definition shift — RPwD Act, 2016 expanded recognised disabilities from 7 to 21, social model replacing medical model; 4% reservation in government jobs, 5% in higher education. (2) Undercount drivers — narrow definitions, stigma-driven under-reporting, survey design. (3) Implementation gap — Rajive Raturi judgment (8 November 2024) made accessibility a fundamental right; Sugamya Bharat (3 December 2015) — bus accessibility just 8.73%; DEPwD budget ₹1,275 crore, 0.025% of Union Budget; under 40% SIPDA spent in 2024-25.

Conclusion: A fresh disability count in Census 2027 and full SIPDA-DDRC delivery are pre-conditions for converting rights to access.

Introduction: India's 60-plus share rises from 10.5% (2022) to 20.8% (2050) per UNFPA India Ageing Report 2023; by 2046 the elderly will outnumber under-14 children for the first time.

Body — three dimensions: (1) Speed — 60-plus group grew 103% between 2000-22, projected 134% growth 2022-50; the 80-plus ‘oldest old’ to rise 279%. (2) Old-age dependency ratio — 10.9 (1961) → 15.7 (2021) → projected ~34 by 2050 (NSO, Elderly in India 2021). (3) Care gap — no national LTC policy; IGNOAPS pension still ₹200/month for BPL 60-79; National Programme for Health Care of Elderly (NPHCE 2010) under-funded; Senior Citizens Welfare Fund.

Conclusion: Build a tiered care system — home-based care via ASHAs, day-care under PMJAY, residential LTC for the 80-plus — and raise IGNOAPS to a meaningful floor.

Introduction: About 70% of India's coal, 80% of iron ore, 95% of bauxite and the bulk of manganese lie in the south-eastern Indian shield — Jharkhand, Odisha, Chhattisgarh, MP.

Body — three dimensions: (1) Geology — Archaean Dharwar and Cuddapah formations carry iron, manganese, gold; Gondwana coalfields (Damodar, Mahanadi, Son-Godavari valleys); East Coast bauxite of Eastern Ghats. (2) Hubs — Singhbhum iron-copper belt, Jharia-Raniganj coal, Bailadila iron, Korba coalfield, Damanjodi-Lanjigarh bauxite, Odisha's Kalahandi-Koraput. (3) Consequences — Chota Nagpur ‘mineral storehouse’ overlaps with tribal heartland; Naxal-affected Red Corridor parallels mineral belt; District Mineral Foundation (PMKKKY 2015) intended to channel mining revenue back.

Conclusion: The resource-development-conflict triangle requires PESA-compliant Gram Sabha consent, FRA recognition, and DMF transparency.