GS Paper 1 practice questions for UPSC Mains 2026.

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: 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: The National Emergency of 25 June 1975 to 21 March 1977 — proclaimed by President Fakhruddin Ali Ahmed on Prime Minister Indira Gandhi's advice — followed the Allahabad High Court judgment of 12 June 1975 setting aside her election. The 44th Amendment of 1978 by the Janata government rolled back its excesses.

Body — three dimensions: (1) Emergency abuses: detentions under MISA, suspension of fundamental rights (ADM Jabalpur 1976 held Article 21 could be suspended); censorship of press; 42nd Amendment (November 1976) called the 'mini-Constitution' added 'socialist, secular' to the Preamble, curtailed judicial review, lengthened Lok Sabha term. (2) Janata response: 44th Amendment, June 1978 — Article 352 amended so emergency can be declared only for 'armed rebellion' not 'internal disturbance'; written cabinet recommendation required; Article 359 amended so Article 20 and Article 21 cannot be suspended; Right to Property removed from Part III (Article 31 to Article 300A). (3) Constitutional legacy: Minerva Mills (1980) reinforced basic structure; ADM Jabalpur expressly overruled in Puttaswamy 2017; demonstrated that constitutional norms can be restored after rupture.

Conclusion: The Emergency–44th Amendment sequence remains the clearest empirical case in Indian constitutional history of democratic self-correction.

Introduction: The Indian Ocean Dipole (IOD) was identified by N.H. Saji and colleagues in 1999 as a coupled ocean-atmosphere mode in the tropical Indian Ocean independent of ENSO.

Body — three dimensions: (1) Mechanism: defined by the Dipole Mode Index (DMI) — anomalous SST difference between the western (50°E–70°E, 10°S–10°N) and south-eastern (90°E–110°E, 10°S–0°N) tropical Indian Ocean. Positive IOD: warmer west, cooler east — enhances south-west monsoon rainfall in India. Negative IOD: reverse — suppresses monsoon. (2) Phases and case studies: 1997 positive IOD coincided with El Niño but still gave India near-normal rainfall; 2019 strong positive IOD compensated for weak El Niño, India had 110% of LPA; 2020 negative IOD pattern muted monsoon. (3) Forecasting: IMD's dynamic Monsoon Mission Coupled Forecasting System (MMCFS); NOAA Pacific buoy network; APEC Climate Center; needs better Indian Ocean RAMA buoy density; ENSO and IOD interaction in 'modoki' configurations remains under-modelled.

Conclusion: The IOD reduces the deterministic role of ENSO but increases the complexity of monsoon forecasting; better Indian Ocean observation infrastructure is the prerequisite for sub-seasonal predictions India's agriculture needs.

Introduction: India has 4,992 sq km of mangrove cover as per India State of Forest Report 2021, distributed mainly along the east coast deltas, west coast estuaries and Andaman-Nicobar Islands.

Body — three dimensions: (1) Distribution: Sundarbans (West Bengal, 2,114 sq km) — world's largest contiguous mangrove forest; Bhitarkanika (Odisha, Brahmani-Baitarani delta) — saltwater crocodile habitat; Pichavaram (Tamil Nadu); Gulf of Kutch (Gujarat); Mahanadi delta. (2) Ecological role: coastal bio-shield reducing wave energy by up to 66% (NRSC studies post-2004 tsunami); carbon sequestration 3–5 times tropical forests (blue carbon); fish nursery for over 250 commercial species; livelihood for fishers, honey collectors. (3) Protection regime: Coastal Regulation Zone 2019 categorises mangroves as CRZ-IA (no-development); Mangroves for the Future programme; MISHTI scheme launched February 2023 to restore 540 sq km by 2027–28; participation in Mangrove Alliance for Climate (COP-27). Threats: shrimp aquaculture, urban expansion (Mumbai), sea-level rise.

Conclusion: Mangroves protect 7,500 km of Indian coastline at a fraction of the cost of engineered sea walls; their integration into CRZ enforcement is overdue.

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 holds the world's fifth-largest iron ore reserves (over 5.5 billion tonnes per IBM, 2023), is the second-largest crude steel producer (140 million tonnes, 2023), and is targeting 300 million tonnes by 2030 under the National Steel Policy 2017.

Body — three dimensions: (1) Ore geography: 80% hematite reserves in Odisha (Joda-Barbil, Keonjhar), Jharkhand (Singhbhum), Chhattisgarh (Bailadila), Karnataka (Sandur, Hospet); magnetite in Karnataka (Kudremukh) and Tamil Nadu (Salem); siderite minor. (2) Steel plant location: weight-loss principle — older plants (TISCO Jamshedpur 1907, Bhilai 1955, Rourkela 1959, Durgapur 1959, Bokaro 1965) located on Damodar-Subarnarekha coal-iron axis. Newer plants (Vijayanagar JSW, Hospet Karnataka; ArcelorMittal Hazira; AMNS Paradip) on coast-orientation for imported coking coal and export. (3) Policy and industrial corridors: National Steel Policy 2017; PLI for specialty steel 2021; iron ore export restrictions; Vizag-Chennai Industrial Corridor and East Coast Economic Corridor align with new steel geography; railway corridors (DFC East-West) carry iron ore to ports. Conflict: Bailadila in Bastar — Maoist insurgency overlaps with mineral belt.

Conclusion: India's steel future requires integrating mineral logistics, port-led growth (Sagarmala) and conflict-affected mining areas into one industrial policy frame.

Introduction: Sagarmala was approved by the Union Cabinet on 25 March 2015, drawing on the National Perspective Plan 2016, with the four-fold objective of port modernisation, port connectivity, port-led industrialisation, and coastal community development. Sagarmala 2.0 was launched in 2024.

Body — three dimensions: (1) Components: 12 major ports + over 200 non-major ports; six new mega-ports including Vadhavan (Maharashtra, foundation August 2024), Galathea Bay (Great Nicobar), Vizhinjam (Kerala, commissioned 2024) as India's first deep-water transshipment terminal; coastal economic zones; multi-modal logistics parks; Roll-on Roll-off (Ro-Ro) ferries. (2) Progress: 839 projects worth Rs 5.79 lakh crore identified; over 240 projects completed by 2024; coastal cargo doubled 2014–24; Jawaharlal Nehru Port Authority and Mumbai Port pursuing capacity expansion. (3) Concerns and gaps: environmental clearances at Vadhavan and Vizhinjam contested under CRZ; Great Nicobar Holistic Development overlaps Sundaland biodiversity hotspot; coastal fisher displacement (Vizhinjam protests 2022); concentration of investment in west coast; East Coast Economic Corridor implementation slower; dredging and silting in major ports.

Conclusion: Sagarmala's logic — replacing land-based with coast-based logistics — is sound but its execution must reconcile port economics with CRZ, fisher livelihoods and biodiversity.

Introduction: The Ministry of Mines released the list of 30 Critical Minerals for India on 28 June 2023 — including lithium, cobalt, nickel, graphite, rare earths, titanium, zirconium and tin — based on the Veena Kumari Dermal Committee report.

Body — three dimensions: (1) Endowment and gaps: lithium reserves found at Salal-Haimana, Reasi (J&K) — 5.9 million tonnes inferred (GSI, February 2023); titanium-bearing beach sands of Kerala, Tamil Nadu, Odisha; graphite in Arunachal, Tamil Nadu, Odisha; rare earth in Indian monazite (KMML, IREL); cobalt and nickel essentially absent. (2) Import dependence: India imports 100% of lithium, cobalt, nickel for battery applications; 70%+ rare earth magnets from China; vulnerability for EV ecosystem, solar manufacturing, defence. (3) Policy framework: Mines and Minerals (Development and Regulation) Amendment Act 2023 — 24 critical minerals reserved for central government auction; KABIL (Khanij Bidesh India Ltd) for overseas acquisition; agreements with Argentina, Australia, Africa Mining Investment Vision; National Critical Mineral Mission 2024–25.

Conclusion: India's critical mineral strategy is now a four-track effort — domestic exploration, recycling, overseas acquisition and processing capacity; success in lithium-cobalt processing will determine whether India captures or just consumes the energy transition.

Introduction: Define the joint-family ideal and frame nuclearisation as the structural shift redefining Indian household life.

Body — three drivers: (1) Demography — average household size fell from 5.5 in 1981 Census to about 4.4 by NFHS-5 (2019-21); rising age at marriage. (2) Migration — nearly 71% of India's elderly live in villages (NSO, Elderly in India 2021) even as young workers move to cities, leaving ‘skip-generation’ households. (3) Economics — paid female labour, urban housing costs and the breakdown of joint property pool joint living.

Conclusion: The family has not collapsed; it has reorganised. State eldercare, the Maintenance and Welfare of Parents and Senior Citizens Act, 2007 and a long-term care system must now do what extended kin once did.

Introduction: Define communalism as the political mobilisation of religion, distinct from religious diversity. Bipan Chandra's three-stage formulation — communal consciousness, liberal communalism, extreme communalism.

Body — three dimensions: (1) Colonial construction — separate electorates under the Indian Councils Act, 1909; the two-nation theory; partition violence of 1947 killing an estimated 0.2–2 million. (2) Post-1947 incidents — Ahmedabad 1969, Bhiwandi 1970, Sikh massacre 1984, Mumbai 1992-93, Gujarat 2002, Muzaffarnagar 2013, Delhi February 2020 (53 dead per Delhi Police). (3) Drivers — fake news on social media, urban segregation, ‘love jihad’ and conversion laws in Uttar Pradesh and Madhya Pradesh.

Conclusion: Constitutional secularism (Articles 25–28, S.R. Bommai 1994 judgment), the Sachar Committee (2006) and the National Foundation for Communal Harmony are the institutional response; political will is the missing input.

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: 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: About 90% of India's workforce is informal, generating roughly 50% of GDP. The Code on Social Security, 2020 was notified into force on 21 November 2025, defining gig and platform workers for the first time.

Body — three dimensions: (1) Scale — ILO India Employment Report 2024 puts informal employment at nearly 90%; e-Shram crossed 31.38 crore registrations as of November 2025; women 53.68% of registrants. (2) Gig growth — NITI Aayog (2022) projects gig workforce 77 lakh (2020-21) to 2.35 crore by 2029-30, 4.1% of total livelihood; women 28% share. (3) The gap — recognition without aggregator contributions actually flowing into the Social Security Fund; portability missing; PM-SYM and Atal Pension Yojana coverage thin.

Conclusion: Build a portable, contribution-based floor on the e-Shram rails — accident cover, maternity, pension — funded by a 1–2% aggregator levy as proposed by NITI Aayog.

Introduction: The Multidimensional Poverty Index (MPI), developed by Sabina Alkire and James Foster at OPHI (2010), measures poverty as overlapping deprivation in health, education and living standards.

Body — three dimensions: (1) Method — 12 indicators across 3 dimensions; a household is multidimensionally poor if deprived in at least one-third weighted indicators; NITI Aayog's National MPI uses NFHS data. (2) Progress — national MPI head-count ratio fell from 29.17% (2013-14) to 11.28% (2022-23); 24.82 crore lifted out (NITI Aayog Discussion Paper, January 2024). (3) Persistence — Bihar 33.76%, Jharkhand 28.81%, Meghalaya 27.79% still poor; nutrition (33% deprivation) and maternal health (22%) the slowest indicators.

Conclusion: The MPI moves with PMAY, Jal Jeevan, Ujjwala, Saubhagya — but anaemia, nutrition and antenatal care need targeted convergence, especially in EAG states.

Introduction: FLFPR (15+) jumped to 41.7% by PLFS 2023-24; yet the Time Use Survey 2019 shows women spend 299 minutes/day on unpaid domestic services vs 97 for men — a 3:1 gap.

Body — three dimensions: (1) Quality — most of the rise is in unpaid family-farm or own-account self-employment, not waged jobs; agricultural feminisation. (2) Care burden — TUS-2019: women 134 min/day on care of children/elderly/sick vs 76 for men; 53.7% of e-Shram registrants female. (3) Policy — Mission Shakti's Sambal (safety) + Samarthya (empowerment) pillars; PMMVY ₹5,000 maternity benefit; creche provisions under the Code on Social Security; Anganwadi as a care infrastructure.

Conclusion: Recognising, reducing, redistributing unpaid care (Diane Elson's 3R framework) is the missing leg — invest in childcare, eldercare and time-saving infrastructure (water taps, LPG) to convert FLFPR rise into real economic agency.

Introduction: Define sex ratio at birth (SRB) and the natural ratio (about 952 girls per 1,000 boys). Frame India's improvement and its limits.

Body — three dimensions: (1) Trend — SRB rose from 918 (NFHS-4, 2015-16) to 929 (NFHS-5, 2019-21); CRS 2020 puts it at 907. (2) Geography — Haryana, Punjab, UP and Rajasthan persistently low; northwest agrarian patrilineal belt worst hit. (3) Drivers and policy — dowry, patrilocal residence, ‘son-as-old-age-support’ logic; PCPNDT Act, 1994; Beti Bachao Beti Padhao launched 22 January 2015 from Panipat; Sukanya Samriddhi Yojana incentivising girl-child savings.

Conclusion: Awareness without enforcement is insufficient — strict PCPNDT prosecutions plus property-rights enforcement under the Hindu Succession (Amendment) Act, 2005 must reinforce BBBP.

Introduction: The 1993 Act and the PEMSR Act, 2013 ban manual scavenging and hazardous cleaning. Yet 294 sanitation workers died in 2020-24 (Rajya Sabha reply, February 2025).

Body — three dimensions: (1) Definitional gap — government claims ‘no manual scavenging’ while logging deaths as ‘hazardous cleaning’; NHRC has recommended widening the definition. (2) Caste pattern — of 58,098 manual scavengers identified, 97.25% with known caste are Scheduled Caste; about 92% of NAMASTE-profiled workers SC/ST/OBC; 77% Dalit (2025 study). (3) NAMASTE shift — National Action for Mechanised Sanitation Ecosystem launched July 2023, ₹349.73 crore for FY24-FY26; PPE kits, Ayushman cover, capital subsidy for vehicles; 90,942 workers profiled as of April 2026.

Conclusion: Mechanisation cannot end a caste-rooted practice alone — close the definitional loophole, enforce the PEMSR Act and end the Swachh Bharat single-pit irony (only ~13% twin-pit toilets).

Introduction: The Hashim Committee (2012) estimated urban housing shortage at 1.88 crore units, of which ~96% was in EWS/LIG. PMAY-U (launched 25 June 2015) has sanctioned about 1.18 crore homes by 2024.

Body — three dimensions: (1) Supply gaps — PMAY-U four verticals (ISSR, AHP, BLC, CLSS); PMAY-U 2.0 (2024) targets 1 crore more; affordable rental housing complexes for migrants. (2) Demand side — urban informality, in-situ slum upgrading vs eviction; 65 million slum residents (Census 2011). (3) Employment side — case for an Urban Employment Guarantee Scheme: Kerala's Ayyankali Scheme, Himachal's MGNREGS-style urban programmes; need is highest among construction-dependent workers post-pandemic.

Conclusion: Bundle PMAY-U 2.0 with rental housing for migrants and an UEGS as a counter-cyclical floor; otherwise PMAY units stand empty while migrants live in slums.

Introduction: Define globalisation as the post-1991 reform integration of India with global capital, labour and culture. Frame both winners and losers.

Body — three dimensions: (1) Jobs — IT-BPM ~5.4 million workers (NASSCOM 2024), services 53% of GDP; conversely 90% workforce still informal, MSME craft clusters squeezed by Chinese imports. (2) Crafts and culture — handloom workers down from 65.5 lakh (Handloom Census 1995-96) to 35.22 lakh (Fourth Handloom Census 2019-20); globalised English-medium consumption coexists with vernacular resurgence. (3) Family and gender — delayed marriage in metros, dual-income households, but also reverse migration (FY21 pandemic) and dowry inflation in upwardly mobile groups.

Conclusion: Globalisation is neither a blessing nor a curse — its outcomes are mediated by caste, region and skill. Protect craft and language ecosystems through GI tags (e.g., Banarasi saree, Kanchipuram silk, Madhubani) and a re-skilling push for tier-2/tier-3 cities.