GS Paper 1 practice questions for UPSC Mains 2026.

Introduction: Place the Indus / Harappan civilisation in the Bronze Age (c. 2600–1900 BCE) and frame the dual claim — urban planning plus craft specialisation.

Body — three dimensions: (1) Hydraulic engineering: Great Bath at Mohenjodaro, Dholavira’s sixteen reservoirs, Lothal dockyard. (2) Town planning: grid streets, citadel–lower town division, covered drains, standardised baked bricks (1:2:4 ratio). (3) Craft and trade economy: shell from Nageshwar, carnelian beads from Chanhudaro, weights in 16-ratios, Meluhha seals at Mesopotamian sites.

Conclusion: The Harappan achievement was an integrated urban system; recent excavations at Rakhigarhi and Sinauli are extending, not overturning, this picture.

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: The Dandi March (12 March to 6 April 1930) launched the Civil Disobedience Movement by walking 240 miles from Sabarmati Ashram to the Dandi sea coast in Gujarat.

Body — three dimensions: (1) Symbolic: salt as universal commodity, breaking a tax monopoly that fell hardest on the poorest — inverting Lord Salisbury’s claim that salt was not a political issue. (2) Strategic: 78 chosen marchers, daily speaking halts, nation-wide replication on the West and East coasts — Sarojini Naidu at Dharasana, C. Rajagopalachari’s Vedaranyam march. (3) International: world press coverage by United Press’ Webb Miller, the Salt March as the moment Indian nationalism became a global news story; led to the Gandhi-Irwin Pact, 5 March 1931 and Gandhi’s Second Round Table Conference visit.

Conclusion: Dandi turned an obscure tax into the most legible image of colonial injustice and made the Congress a global political actor.

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: PLFS 2023-24 reports FLFPR at 41.7%, an 18-point rise in six years; the headline conceals a quality problem.

Body — weigh evidence: (1) Composition: most of the rise sits in unpaid family labour and self-employment in agriculture; salaried regular wage share for women fell to 15.9%. (2) Care burden: NSO Time Use Survey 2024 — women do 289 minutes a day of unpaid domestic work, men 88 minutes (3.3x gap). (3) Policy: Maternity Benefit Amendment 2017, Anganwadi crches under Mission Saksham Anganwadi, Code on Wages 2019, Lakhpati Didi scheme; missing pieces — universal childcare, paid eldercare, social security for gig and self-employed women.

Conclusion: Diane Elson’s ‘recognise, reduce, redistribute’ frame for care work is the missing third pillar; without it, FLFPR rises will keep being counted, not paid.

Introduction: India’s urban share, last measured at 31.16% in Census 2011, is projected by the World Bank’s 2025 report to reach about 951 million urban Indians by 2050.

Body — three dimensions: (1) Migration: 45.36 crore migrants in Census 2011, with rural-to-urban moves driving city growth. PRS data shows over 80% of urban informal workers are migrants. (2) Housing: National Buildings Organisation puts the urban housing shortage at 1.88 crore in 2012 with 95% in EWS and LIG; PMAY-Urban 2.0 (September 2024) sanctioned around 3.53 lakh houses by mid-2025. (3) Governance: 74th Constitutional Amendment 1992 devolved 18 functions to ULBs but state finance commissions remain weak; municipal own revenue is 1% of GDP against the global 7%.

Conclusion: The Isher Judge Ahluwalia HPEC 2011 report’s estimate of ₹39 lakh crore in urban investment over 20 years is still the benchmark; without fiscal devolution to ULBs the dual city will harden.

Introduction: Place the Rigvedic period c. 1500–1000 BCE in the Sapta Sindhu region. Pastoralism dominates the literary surface (gau-dhana, cattle-raid hymns) but archaeology and stray hymns reveal a working agrarian base.

Body — three dimensions: (1) Irrigation and field practice: avata (well), kulya (canal), khanitra (digging tool) in the Rigveda; ploughing references in book IV; barley (yava) as principal crop. (2) Kshetra and ritual: the kshetra-pati hymn (RV IV.57) personifies the field; Atharvaveda's kshetra-patni elevates the 'mistress of the field' as ritual presence; agricultural rites bind the household economy. (3) Continuity into Later Vedic: shift to Doab, iron axes (krishna ayas), expansion into Painted Grey Ware villages — agriculture moves from supplementary to principal. R.S. Sharma's 'Material Culture and Social Formations' anchors this transition.

Conclusion: The pastoral idiom of the Rigveda masks an emerging agrarian order whose deepening through the Later Vedic period laid the base for the second urbanisation.

Introduction: The Gupta age (c. 319–550 CE) under Chandragupta I, Samudragupta, Chandragupta II and Skandagupta is conventionally framed as a classical golden age, a label that deserves disaggregation.

Body — three dimensions: (1) Cultural synthesis: Sanskrit literature peaks with Kalidasa's Abhijnanashakuntalam and Meghaduta, Vishakhadatta's Mudrarakshasa; Aryabhatiya (499 CE) defines astronomy and mathematics; Nalanda emerges as a mahavihara; classical sculpture at Sarnath, Deogarh, Udayagiri caves; decimal system formalised. (2) Political reach: Samudragupta's Allahabad pillar lists conquests but most southern kings remain tributary, not annexed; Hun invasions weaken Skandagupta; empire collapses by mid-6th century. (3) Limits and critique: D.N. Jha and R.S. Sharma point to early feudalism — land grants to Brahmanas and temples, decline of urban-monetary economy, hardening of varna and patriarchy as recorded in Smritis.

Conclusion: The Gupta age is golden in art, science and Sanskritic culture; politically it is a north-Indian classical revival whose social undercurrents preview medieval Indian feudalism.

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: Between 1793 and 1833 the East India Company experimented with three revenue regimes that together covered most of British India and shaped agrarian society into the 20th century.

Body — three dimensions: (1) Permanent Settlement (1793, Bengal, Bihar, Orissa, parts of Madras): Cornwallis fixed land revenue forever with zamindars as proprietors; created absentee landlordism, sub-infeudation, indebtedness; the Sunset Law dispossessed older zamindars. (2) Ryotwari (1820, Madras and Bombay): Thomas Munro and Captain Read settled directly with the cultivating ryot, revenue revised every 30 years, no intermediary — but revenue often set at 45–55% of gross produce, leading to chronic indebtedness and the Deccan Riots of 1875. (3) Mahalwari (1822, North-Western Provinces and Punjab): Holt Mackenzie and R.M. Bird settled with the village (mahal) treated as a corporate body, revenue collected through lambardars; revision every 20–30 years. (4) Common effect: cash revenue regardless of harvest, commercialisation of agriculture (cotton, indigo, opium), rise of moneylender, decline of village artisans — the Bengal famine of 1770 and Madras famine of 1876–78 expose the system's brittleness.

Conclusion: Bipan Chandra reads the three settlements as a single colonial project of revenue maximisation with regional variations; their structures echo into post-1947 land reform debates.

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: Between 1965 and 1990 the Indian state turned a food-deficit, milk-importing economy into a wheat-rice surplus producer and the world's largest milk producer through two state-led technological revolutions.

Body — three dimensions: (1) Green Revolution: launched after the 1965–66 drought and PL-480 dependence; Norman Borlaug's Mexican wheat varieties (Lerma Rojo, Sonora 64) and IRRI's IR-8 rice introduced by M.S. Swaminathan; package programme of HYV seeds, chemical fertilisers, assured irrigation, MSP and FCI procurement after 1965; output of foodgrains rose from 74 million tonnes in 1966-67 to 211 million tonnes by 2001-02. (2) White Revolution: Operation Flood launched 13 January 1970 under Verghese Kurien; Anand pattern co-operative federated as Gujarat Co-operative Milk Marketing Federation (Amul); India became the world's largest milk producer in 1998. (3) Continuity and consequences: both used cooperative-state hybrid institutions and price support; Green Revolution concentrated in Punjab, Haryana, western UP — by-passed eastern India, dryland regions; led to groundwater depletion (CGWB data — 78% blocks in Punjab over-exploited), soil salinity, agrarian distress; White Revolution diffused widely but caused buffalo monoculture and bovine population pressure.

Conclusion: Both revolutions show that scale was achieved by state-cooperative scaffolding; sustaining them now requires correcting regional and ecological imbalances.

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: The Indian subcontinent is built from three structural blocks — the active Himalayan thrust belt, the stable Peninsular shield (the Indian craton with Deccan Trap cover), and the Indo-Gangetic foredeep. Each has a distinct seismic signature.

Body — three dimensions: (1) Tectonic causes: ongoing collision of the Indian Plate moving north at 5 cm/year against the Eurasian Plate generates the Himalayan thrust; intra-plate stresses in the peninsula along the Narmada-Son lineament produced Latur (1993, M 6.4) and Koyna (1967, M 6.5). (2) Bureau of Indian Standards seismic zoning: Zone V (Kashmir, NE, parts of Gujarat, A&N) — very high risk; Zone IV (Delhi NCR, Mumbai metro, parts of UP, Bihar); Zone III (Chennai, Bengaluru), Zone II — low risk. Around 59% of India's land falls in Zone III or higher. (3) Policy gap: NDMA Earthquake Guidelines 2007 require structural compliance with IS 1893; municipal enforcement weak; National Building Code 2016 not adopted by all states; retrofitting limited; Kashmir 2005, Sikkim 2011, Doda 2013, Manipur 2016 illustrate continuing exposure. NDRF and INSAT-3DS provide post-event response.

Conclusion: The shift India needs is from response to risk-informed urban planning along the Himalayan front and in Zone IV megacities.