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GS 3 · Practice archive

GS Paper 3 practice questions for UPSC Mains 2026.

Economy, Environment, Science and Technology, Internal Security, Disaster Management.

20 Qs / 250 marks439 questionsModel outlines included

GS Paper 3 · Tips & tricks

GS-3 — data first, then policy, then a concrete way forward

  1. Open with a number.GDP share, FDI inflow, emissions intensity, forest cover %, fiscal deficit — the right number in the first sentence does the work of a paragraph.
  2. Cite the latest report by name.Economic Survey, RBI Financial Stability Report, NITI Aayog SDG India Index, ISRO mission timeline — examiners can verify, so accuracy is checked.
  3. Use a flowchart for processes.Disaster cycle, ML pipeline, food-processing value chain, cybersecurity kill chain — a small labelled diagram beats prose.
  4. Distinguish stock from flow.Forex reserves vs trade balance, debt stock vs deficit, capacity installed vs energy generated. Mixing them up costs marks.
  5. Way forward must be specific.Not "the government should take steps" — name the ministry, the scheme name, the budget head, the timeline.
Q.110 marks · 150w 9 min Medium

What is the technology being employed for electronic toll collection on highways? What are its advantages and limitations? What are the proposed changes that will make this process seamless? Would this transition carry any potential hazards?

Subtopic: Science & Technology · electronic toll collection technology

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Introduction (FASTag/RFID-based ETC) → technology explained → advantages → limitations → proposed changes: GNSS/GPS satellite tolling, ANPR, barrier-free → potential hazards: privacy, data security, digital divide → Conclusion
Key points
  • FASTag uses passive RFID; windscreen tags read by plaza antennae under NPCI/NHAI's NETC programme with automatic prepaid deduction.
  • Advantages: cashless transactions, shorter queues, fuel savings, revenue transparency, lower idling emissions, interoperability.
  • Limitations: vehicles still stop at barriers, tag misreads/blacklisting, insufficient balance, double deductions, connectivity dependence.
  • Proposed change: GNSS/GPS-based satellite tolling with on-board units for distance-based, barrier-free charging.
  • ANPR (number-plate recognition) enables free-flow, barrier-free corridors.
  • Hazard: continuous GPS location tracking raises privacy/surveillance concerns under the DPDP Act, 2023.
  • Hazards: cybersecurity risks (spoofing, breaches), billing disputes, and digital-divide exclusion.

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Q.210 marks · 150w 9 min Medium

Explain how narco-terrorism has emerged as a serious threat across the country. Suggest suitable measures to counter narco-terrorism.

Subtopic: Internal Security · narco-terrorism

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Introduction (define narco-terrorism: drug-terror nexus) → how it has emerged: Golden Crescent/Triangle, sea routes, Punjab, terror financing → impacts → counter-measures: institutional, legislative, coastal, demand-side, international → Conclusion
Key points
  • Narco-terrorism is the mutually reinforcing nexus where drug-trafficking proceeds finance terrorism and terror networks protect the trade.
  • India is squeezed between the Golden Crescent (Af-Pak-Iran) and Golden Triangle (Myanmar-Laos-Thailand) opium belts.
  • Punjab and border states face heroin inflows, increasingly delivered by drones across the Indo-Pak border.
  • Maritime trafficking — major heroin/methamphetamine seizures along the western coast and via containers.
  • Proceeds fund militancy (J&K, LWE) while addiction damages youth and public health.
  • Counter-measures: strengthen NCB, NCORD, NIDAAN/NARCOD intelligence sharing; strict NDPS Act and PMLA action on financing.
  • Border/coastal security with anti-drone systems; demand reduction via Nasha Mukt Bharat Abhiyaan; UNODC-led international cooperation.

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Q.310 marks · 150w 9 min Easy

Describe the context and salient features of the Digital Personal Data Protection Act, 2023.

Subtopic: Science & Technology · Data Protection & Privacy

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Introduction → context of the law → Puttaswamy and Srikrishna Committee → salient features → obligations and rights → Data Protection Board → Conclusion
Key points
  • First dedicated Indian law on digital personal data protection, enacted August 2023.
  • Rooted in the Puttaswamy (2017) right-to-privacy verdict and the Srikrishna Committee report.
  • Applies to digital personal data in India and to overseas processing linked to Indian users.
  • Consent-centric with defined 'legitimate uses' exceptions; clear, itemised notice required.
  • Data Fiduciary duties: purpose limitation, security safeguards, breach reporting; extra duties for Significant Data Fiduciaries.
  • Data Principal rights: access, correction, erasure, nomination and grievance redressal.
  • Data Protection Board of India adjudicates breaches; penalties up to Rs 250 crore.

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Q.415 marks · 250w 14 min Medium

Discuss the merits and demerits of the four ‘Labour Codes’ in the context of labour market reforms in India. What has been the progress so far in this regard?

Subtopic: Indian Economy · Labour Reforms

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Introduction → rationale for consolidating 29 laws into four codes → merits → demerits → progress and implementation status → way forward → Conclusion
Key points
  • Four codes subsume 29 central laws: Wages (2019); Industrial Relations, Social Security, OSH (2020).
  • Merit: single, simplified compliance architecture improving ease of doing business.
  • Merit: statutory floor wage and universal, timely minimum-wage coverage across all sectors.
  • Merit: first statutory recognition and social-security extension for gig and platform workers.
  • Demerit: retrenchment/closure permission threshold raised to 300 workers, easing lay-offs.
  • Demerit: higher thresholds dilute standing orders, union recognition and collective bargaining.
  • Progress: enacted but not notified; States have largely pre-published draft rules awaiting joint roll-out.
  • Heavy reliance on delegated rule-making creates uncertainty over final entitlements.

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Q.515 marks · 250w 14 min Medium

What is the need for expanding the regional air connectivity in India? In this context, discuss the government’s UDAN Scheme and its achievements.

Subtopic: Indian Economy · Infrastructure & Regional Air Connectivity

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Introduction → need for regional air connectivity → UDAN design and features → achievements → limitations → Conclusion
Key points
  • Regional connectivity de-concentrates traffic away from a few metros toward Tier-2/3 towns.
  • Spurs local economies, tourism and trade and integrates remote, hilly and island regions.
  • UDAN launched 2016 under the National Civil Aviation Policy as a Regional Connectivity Scheme.
  • Airfare capped on half the seats; airlines get Viability Gap Funding via a Regional Connectivity Fund.
  • Routes allotted by competitive bidding; funded partly by a levy on major routes.
  • Successive versions added hilly, island, seaplane, helicopter and North-East connectivity.
  • Revived unserved/underserved airports and heliports and carried crores of passengers.
  • Sustainability of routes and airline viability remain key challenges.

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Q.615 marks · 250w 14 min Medium

What are the major challenges faced by Indian irrigation system in recent times? State the measures taken by the government for efficient irrigation management.

Subtopic: Agriculture & Food Security · Irrigation Management

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Introduction → significance of irrigation → major challenges → government measures for efficiency → assessment → Conclusion
Key points
  • About half of net sown area remains rain-fed, exposing farming to monsoon risk.
  • Groundwater over-extraction and falling water tables, aggravated by free/subsidised power.
  • Low water-use efficiency due to flood irrigation and paddy/sugarcane in water-scarce regions.
  • Canal systems face conveyance losses, silting and a gap between potential created and utilised.
  • PMKSY unifies schemes: 'Har Khet ko Pani' and 'Per Drop More Crop' micro-irrigation.
  • Micro Irrigation Fund (NABARD) and Accelerated Irrigation Benefit Programme expand and complete projects.
  • Atal Bhujal Yojana and PM-KUSUM promote community groundwater management and solar pumping.

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Q.715 marks · 250w 14 min Medium

Elucidate the importance of buffer stocks for stabilizing agricultural prices in India. What are the challenges associated with the storage of buffer stocks? Discuss.

Subtopic: Agriculture & Food Security · Buffer Stocks & Price Stabilisation

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Introduction → what buffer stocks are → their importance for price stability → storage challenges → measures/way forward → Conclusion
Key points
  • Buffer stocks are FCI-held reserves of rice/wheat procured at MSP against fixed buffer norms.
  • Open-market sales moderate price spikes; MSP procurement sets a price floor for farmers.
  • Stocks fuel the PDS and welfare schemes, shielding the poor from food inflation.
  • Serve as a strategic reserve against droughts, disasters and supply shocks.
  • Open-plinth (Cover and Plinth) storage exposes grain to weather, pests and spoilage.
  • Stocks far above buffer norms raise carrying costs and lock up capital.
  • Skewed procurement and weak logistics cause costly grain movement and losses.
  • Modern silos, Depot Online System and decentralised procurement can improve storage.

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Q.815 marks · 250w 14 min Medium

What are asteroids? How real is the threat of them causing extinction of life? What strategies have been developed to prevent such a catastrophe?

Subtopic: Science & Technology · Space & Planetary Defence

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Introduction → what asteroids are → reality of the extinction threat → detection and deflection strategies → Conclusion
Key points
  • Asteroids are rocky/metallic Solar-System remnants, mostly in the Mars-Jupiter main belt.
  • Earth-approaching ones are Near-Earth Objects (NEOs), the focus of planetary defence.
  • Chicxulub impact (~66 mya) linked to dinosaur extinction shows the high-consequence tail risk.
  • 2013 Chelyabinsk airburst illustrates real damage from even modest-sized objects.
  • Most large NEOs are catalogued with no near-term impact predicted: low-probability, high-impact.
  • Detection via NASA/ESA surveys, Planetary Defense Coordination Office and warning networks.
  • DART (2022) proved kinetic-impactor deflection by shifting Dimorphos's orbit.
  • Alternatives: gravity tractor, ion-beam shepherd, nuclear stand-off as last resort.

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Q.915 marks · 250w 14 min Hard

India has a long and troubled border with China and Pakistan fraught with contentious issues. Examine the conflicting issues and security challenges along the border. Also give out the development being undertaken in these areas under the Border Area Development Programme (BADP) and Border Infrastructure and Management (BIM) Scheme.

Subtopic: Internal Security · Border Management

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Introduction → nature of the China and Pakistan borders → conflicting issues and security challenges → developments under BADP and BIM → assessment → Conclusion
Key points
  • India-China border (~3,488 km LAC) is un-demarcated, causing perception-based stand-offs.
  • India-Pakistan border (~3,323 km incl. LoC) faces terrorism, infiltration and ceasefire violations.
  • Doklam (2017) and Eastern Ladakh (2020) illustrate LAC friction and China's infrastructure push.
  • Drone-enabled arms and narcotics smuggling is a growing threat along the western border.
  • Harsh terrain, porosity and sparse population strain surveillance and logistics.
  • BADP funds roads, schools, health, water and skilling to anchor border populations.
  • BIM Scheme upgrades fencing, floodlighting, border outposts, roads and observation posts.
  • Vibrant Villages Programme and BRO projects reinforce connectivity and de-migration.

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Q.1015 marks · 250w 14 min Medium

Social media and encrypting messaging services pose a serious security challenge. What measures have been adopted at various levels to address the security implications of social media? Also suggest any other remedies to address the problem.

Subtopic: Internal Security · Social Media & Cyber Security

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Introduction → why social media and encryption pose security risks → measures adopted at various levels → additional remedies → Conclusion
Key points
  • Social media and encryption enable disinformation, radicalisation, fraud and hard-to-trace crime.
  • Viral fake news and hate speech can spark communal violence and mob incidents.
  • IT Act 2000 and IT Rules 2021 require grievance officers, takedowns and originator traceability.
  • Section 69A empowers the government to block content on security grounds.
  • Institutions: I4C, CERT-In and the National Cyber Crime Reporting Portal.
  • Remedies: comprehensive cyber-security law and stronger platform accountability.
  • Digital literacy, prebunking and rapid official rebuttal counter rumours.
  • Solutions must balance security with privacy and freedom of speech.

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Q.1110 marks · 150w 9 min Medium

Distinguish between the Human Development Index (HDI) and the Inequality-adjusted Human Development Index (IHDI) with special reference to India. Why is the IHDI considered a better indicator of inclusive growth?

Subtopic: Indian Economy · HDI, IHDI and inclusive growth

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Introduction (HDI and IHDI as UNDP measures) → distinguish: components and what IHDI adds (inequality adjustment) → India's position and the inequality 'loss' → why IHDI better captures inclusive growth → Conclusion
Key points
  • HDI is a composite of life expectancy, education (mean and expected years of schooling) and GNI per capita — UNDP's Human Development Report.
  • IHDI discounts each HDI dimension for the inequality in its distribution using the Atkinson measure.
  • When distribution is perfectly equal, IHDI equals HDI; a wider gap causes a larger 'loss' in the IHDI value.
  • HDI reflects average achievement; IHDI reflects the actual level of human development experienced by the population.
  • India's HDI drops appreciably on adjustment, reflecting income, health, education, regional, gender and social disparities.
  • Inclusive growth means benefits reaching all; IHDI penalizes concentration among a few, exposing what averages hide.
  • IHDI aligns with equity and the SDG principle of 'leave no one behind', making it a better inclusive-growth gauge.

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Q.1210 marks · 150w 9 min Medium

What are the challenges before the Indian economy when the world is moving away from free trade and multilateralism to protectionism and bilateralism? How can these challenges be met?

Subtopic: Indian Economy · protectionism, deglobalization and India's response

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Introduction (shift from free trade to protectionism/bilateralism) → challenges for India: export uncertainty, WTO paralysis, supply chains, tariffs → how to meet them: FTAs, competitiveness, domestic demand, services → Conclusion
Key points
  • The multilateral order is fraying — WTO appellate body paralysed, with major economies adopting tariffs, subsidies, friend-shoring and bilateral deals.
  • Challenge: export uncertainty from rising tariffs and non-tariff barriers such as the EU's carbon border adjustment mechanism (CBAM).
  • A dysfunctional WTO weakens India's ability to defend market access and settle disputes.
  • Supply-chain reshoring and 'China+1' bring both risk and opportunity but demand competitiveness.
  • Response: deepen FTAs — India-UAE CEPA, India-Australia ECTA, India-EFTA TEPA, and pursue India-EU and India-UK deals.
  • Boost competitiveness via PLI manufacturing, PM Gati Shakti logistics and ease-of-doing-business to attract relocating investment.
  • Diversify markets, leverage strong services/digital exports, strengthen domestic demand, and champion WTO reform with Global South coalitions.

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Q.1310 marks · 150w 9 min Medium

Explain the factors influencing the decision of the farmers on the selection of high value crops in India.

Subtopic: Agriculture & Food Security · crop diversification and high-value crops

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Introduction (high-value crops and diversification) → economic factors → agro-climatic and input factors → market and institutional factors → risk and policy factors → Conclusion
Key points
  • High-value crops (horticulture, spices, floriculture) yield higher returns per hectare than cereals
  • Expected profitability and price volatility are the primary decision drivers
  • Agro-climatic suitability — soil, rainfall, temperature — determines feasibility
  • Assured irrigation and input access matter as these crops are water/input-intensive
  • Market proximity, cold-chain and processing infrastructure crucial for perishables
  • Risk factors: perishability, pests, weather; mitigated by crop insurance (PMFBY)
  • Institutional support — credit, extension, FPOs, contract farming, MIDH subsidies

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Q.1410 marks · 150w 9 min Medium

Elaborate the scope and significance of supply chain management of agricultural commodities in India.

Subtopic: Agriculture & Food Security · agricultural supply chain management

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Introduction (define agri supply chain) → scope across the value chain → significance for farmers, consumers, economy → significance for food security and losses → Conclusion
Key points
  • Agri SCM spans farm-to-fork: procurement, storage, processing, transport, distribution, retail
  • Upstream (inputs, aggregation), midstream (cold chain, processing), downstream (mandis, e-markets)
  • Cuts massive post-harvest losses (over ₹1.5 lakh crore/year)
  • Improves farmer price realisation by shortening intermediary chains
  • Stabilises prices, curbs food inflation and strengthens food security
  • Ensures safe, traceable, quality food for consumers
  • Generates agro-processing and logistics employment and boosts exports

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Q.1510 marks · 150w 9 min Medium

Terrorism is a global scourge. How has it manifested in India? Elaborate with contemporary examples. What are the counter measures adopted by the State? Explain.

Subtopic: Internal Security · terrorism and counter-terrorism

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Introduction (terrorism as a global scourge) → manifestations in India with examples → state counter-measures (legal, institutional, operational) → Conclusion
Key points
  • Terrorism = calculated violence to instil fear for political/ideological ends
  • Cross-border terror in J&K; 26/11 Mumbai, Pathankot, Pulwama attacks
  • Left-Wing Extremism in the shrinking 'Red Corridor'; North-East insurgencies
  • Online radicalisation and lone-wolf threats via social media
  • Legal tools: UAPA, NIA Act; terror-financing curbs via PMLA and FATF
  • Institutions: NIA, Multi-Agency Centre, NATGRID, NSG
  • Development, de-radicalisation and community engagement complement hard security

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Q.1610 marks · 150w 9 min Medium

The Government of India recently stated that Left Wing Extremism (LWE) will be eliminated by 2026. What do you understand by LWE and how are the people affected by it? What measures have been taken by the government to eliminate LWE?

Subtopic: Internal Security · Left Wing Extremism

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Introduction (define LWE/Maoism, Red Corridor, 2026 target) → how people are affected → government measures: security + development (SAMADHAN) → outcomes → Conclusion
Key points
  • LWE (Naxalism/Maoism) is an armed CPI(Maoist) insurgency pursuing 'protracted people's war', concentrated in the forested, tribal 'Red Corridor'.
  • Government has targeted elimination of LWE by March 2026.
  • Tribals/forest dwellers are worst affected — caught between Maoist coercion and operations, facing displacement and rights denial.
  • Extortion, 'people's courts', youth recruitment and destruction of schools/roads/towers isolate communities and stall development.
  • SAMADHAN doctrine integrates leadership, aggressive action, technology, intelligence and financial choking.
  • Development thrust: road (RCPLWEA) and mobile connectivity, Aspirational Districts, skill centres, Special Central Assistance, financial inclusion.
  • Surrender-and-rehabilitation plus tribal rights (PESA, Forest Rights Act) underpin durable resolution; affected districts and violence have declined sharply.

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Q.1715 marks · 250w 14 min Medium

Explain how the Fiscal Health Index (FHI) can be used as a tool for assessing the fiscal performance of states in India. In what way would it encourage the states to adopt prudent and sustainable fiscal policies?

Subtopic: Indian Economy · Fiscal Health Index and cooperative fiscal federalism

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Introduction (NITI Aayog's FHI 2025) → how it assesses state fiscal performance: the five sub-indices → as a diagnostic and benchmarking tool → how it incentivizes prudent, sustainable fiscal policy → caveats → Conclusion
Key points
  • The Fiscal Health Index (FHI) was released by NITI Aayog for the first time in January 2025, ranking major states on fiscal soundness.
  • It draws largely on audited CAG data, converting scattered fiscal data into a single comparable diagnostic.
  • Sub-dimensions include quality of expenditure, revenue mobilization, fiscal prudence (deficit containment) and debt sustainability.
  • Quality of expenditure rewards development and capital outlay over committed/revenue spending with higher multipliers.
  • Transparent ranking triggers competitive federalism and peer pressure, nudging laggard states to reform.
  • Sub-index scores pinpoint specific weaknesses (capital spend, debt burden), enabling targeted correction.
  • Public visibility raises the political cost of populist spending and off-budget borrowing, promoting accountability.
  • Effectiveness depends on timely comparable data and adjusting for states' structural differences.

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Q.1815 marks · 250w 14 min Medium

Discuss the rationale of the Production Linked Incentive (PLI) scheme. What are its achievements? In what way can the functioning and outcomes of the scheme be improved?

Subtopic: Indian Economy · Production Linked Incentive scheme

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Introduction (PLI as Atmanirbhar manufacturing push) → rationale → achievements across sectors → gaps and how to improve → Conclusion
Key points
  • PLI (from 2020-21) covers 14 sectors with about ₹1.97 lakh crore outlay, incentivizing incremental domestic production under Atmanirbhar Bharat.
  • Rationale: raise manufacturing's GDP share, cut strategic import dependence and the China trade deficit, integrate global value chains, and create jobs via outcome-linked subsidies.
  • Mobile/electronics success: India became the world's second-largest mobile manufacturer with surging electronics exports (Apple contract makers scaling up).
  • Pharma/API PLI revived bulk-drug manufacturing, reducing key starting material imports; telecom, food processing, white goods and solar PV attracted investment.
  • Weakness: much gain is assembly-led with limited domestic value addition in components and design.
  • Improvements: simplify and speed up incentive disbursement to reduce firm hesitancy.
  • Broaden to labour-intensive sectors (leather, garments, toys) and MSMEs; build skilling, backward linkages and avoid a post-sunset subsidy cliff.

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Q.1915 marks · 250w 14 min Medium

Examine the scope of the food processing industries in India. Elaborate the measures taken by the government in the food processing industries for generating employment opportunities.

Subtopic: Agriculture & Food Security · food processing industries and employment

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Introduction (FPI scope and low processing level) → scope: value addition, wastage reduction, incomes, exports → government measures for employment → Conclusion
Key points
  • India is a top global producer of grains, horticulture, milk and marine products, but its food-processing level is low — large untapped scope.
  • Processing reduces significant post-harvest losses caused by weak storage and cold chains.
  • Value addition raises farmer realizations and export competitiveness of processed foods.
  • FPI creates backward-forward linkages across agri-logistics, packaging, cold chains and rural enterprise.
  • PM Kisan SAMPADA Yojana funds mega food parks, cold chains and agro-processing clusters, creating rural jobs.
  • PMFME formalizes and finances micro food-processing units and SHGs; PLI for food processing draws investment, branding and exports.
  • Operation Greens and One District One Product (ODOP) anchor local, perishable-based employment ecosystems.

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Q.2015 marks · 250w 14 min Medium

India aims to become a semiconductor manufacturing hub. What are the challenges faced by the semiconductor industry in India? Mention the salient features of the India Semiconductor Mission.

Subtopic: Science & Technology · semiconductor manufacturing and India Semiconductor Mission

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Introduction (strategic importance of chips, India's ambition) → challenges: capital, ecosystem, talent, resources, geopolitics → salient features of India Semiconductor Mission → emerging projects → Conclusion
Key points
  • Semiconductors are strategic 'digital oil' for electronics, defence, telecom, EVs and AI; chip shortages exposed India's import dependence.
  • Challenge — extreme capital intensity: leading-edge fabs cost billions with long gestation and near-zero error tolerance.
  • Challenge — resource needs: ultra-pure water, uninterrupted power, specialized chemicals and gases.
  • Challenge — weak upstream ecosystem (equipment, materials, IP), shortage of fabrication talent despite design strength, and geopolitical competition.
  • India Semiconductor Mission (ISM), 2021, with about ₹76,000 crore corpus to build a full semiconductor and display ecosystem.
  • ISM offers fiscal support up to 50% of project cost for fabs, display fabs and ATMP/OSAT units.
  • Design Linked Incentive (DLI) scheme nurtures domestic design startups; SEMICON India platform and skilling attract investment.

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