UPSC CSE 2026 Prelims Paper Analysis

UPSC CSE 2026 Prelims Paper Analysis

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EKAM IAS Academy · Exam Analysis

UPSC CSE 2026 Prelims —
Complete Subject-wise Paper Analysis

A detailed, question-by-question breakdown of GS Paper 1 — weightage, themes, difficulty, and what aspirants should learn from this year's paper.

The UPSC Civil Services Preliminary Examination 2026 was conducted today, and at EKAM IAS Academy our faculty has carefully decoded every question of General Studies Paper 1. The paper continued UPSC’s recent trend of blending conceptual depth with contemporary current affairs, while heavily rewarding aspirants who studied NCERT fundamentals alongside the previous two years of events.

Below is our subject-wise weightage chart, chapter-wise breakdown of important questions, difficulty assessment, and the strategy takeaways your 2027 preparation must absorb.

Subject-wise Weightage (GS Paper 1)

🏛️
History & Art/Culture
19
💹
Economy & Finance
19
🔬
Science & Technology
14
🌐
International Relations
12
🌿
Environment & Ecology
10
⚖️
Polity & Governance
9
🗺️
Geography (Indian + World)
7
🏆
Misc/Sports/Awards
7
🧭
Ethics / Case Studies
3
🏛️

History & Art/Culture - 19 Questions

Ancient History (8Qs)

Q. No Topic Chapter
Q1 Pleistocene river drainage (Yamuna–Indus–Sutlej shifts); Nadi-Sukta of Rigveda; Robert Bruce Foote Geo-historical / Vedic geography
Q2 Empty seat in early Buddhist iconography (Mahaparinibbana) Buddhist Art & Symbolism
Q4 Amaravati Stupa — Lower Krishna Valley; South-East Asia influence Schools of Sculpture (Amaravati school)
Q5 Tamilakam dynasties — Senguttuvan/Chera, Udiyanjeral/Chola, Nedunjeliyan/Pandya Sangam Age
Q10 Kshetra-patni term — Ashtadhyayi (Panini) Sanskrit Texts
Q13 Pali texts — coins (kahapana, nikkha, kamsa, kakanika); punch-marked silver coins NBPW / Second Urbanisation / Numismatics
Q15 Jain 4 forms of existence — Deva, Yaksha, Manushya, Tiryancha Jainism Philosophy
Q18 Harappan findings — spindle-whorls, weights, baked-brick houses IVC / Harappan Civilization
Q20 Rigvedic agriculture — wells (ashma chakra), parashu, kulisha, datra, sreni Rigvedic Society & Economy

Modern History — Freedom Struggle (7 Qs)

Q. No Topic Chapter
Q9 Pandit Mallikarjun Mansur — Jaipur-Atrauli Gharana Hindustani Classical Music
Q11 Carnatic Raga similar to Raga Bilawal — Dheera Shankarabharanam Carnatic Music
Q14 Nagara-style shikhara temples — Dashavatara (Deogarh) only; Malegitti/Huchimalligudi/Virupaksha are Dravida Temple Architecture
Q16 Hallisalasya painting (Bagh Caves) — A joyous folk dance Cave Paintings
Q17 Place-value system — Mankani plates (AD 595-596) Gujarat; 9th century inscriptions Ancient Indian Mathematics

Modern History — Freedom Struggle (7 Qs)

Q. No Topic Chapter
Q6 Forward Bloc formation 1939 — Subhas Chandra Bose; reasons Revolutionary & Left-Wing Movements
Q7 British policy in Awadh post-1856 annexation — taluqdars, Summary Revenue Settlement Annexation Policy / Causes of 1857
Q8 Montague-Chelmsford Reforms 1919 — Separate Electorates & community politics Constitutional Development
Q12 Hilton-Young Commission 1926 — Rupee-Sterling exchange rate Economic Policies (Colonial)
Q19 Eka Movement vs Bardoli Satyagraha Peasant Movements (1920s)
Q27 Moidams of Tai-Ahom — UNESCO World Heritage; burial mounds of royals Medieval History / Ahom Kingdom
🗺️

Geography (Indian + World)

7 questions — drainage systems, climate, and UNESCO geoparks. Map-based & boundary questions made a return.

Q. No Topic Chapter
Q21 Tungurahua Volcano — UNESCO Geopark 2025 (Ecuador) Medieval History / Ahom Kingdom
Q23 Climate of Andaman & Nicobar Islands — tropical, both monsoons Indian Climatology
Q24 Peninsular Block features — Velikonda/Mahendragiri hills Indian Physiography
Q29 Lake Turkana — largest desert lake, Kenya, Jade Sea World Lakes & UNESCO
Q35 River identification — antecedent drainage, 3 countries, Tibet origin, no distributaries → Sutlej Indian Drainage System
Q36 Indian States borders — UP shares most boundaries; Rajasthan longest international border; Sikkim's neighbours Political Geography
🌿

Environment & Ecology

10 questions — protected areas, biodiversity, and 2024–25 climate conventions. Foxtail Orchid and Madhav Tiger Reserve were the toughest current-affairs picks.

Q. No Topic Chapter
Q22 Madhav National Park (MP) — Tiger Reserve 2025; Sakhya Sagar Ramsar Site Protected Areas
Q26 Rhynchostylis retusa (Foxtail Orchid) — State flower of Arunachal & Assam Endemic Flora
Q28 UN Ocean Conference 2025 France — FAO "Blue Transformation" Four Betters International Environmental Conferences
Q30 First Plan Vivo certified REDD+ project in India — Khasi Hills Community Forest Conservation
Q31 India's Climate Change response — LT-LEDS, BUR-4 (Dec 2024), 8% GHG decrease Climate Action
Q32 Western Hoolock Gibbons — only ape in India, brachiation Wildlife Conservation
Q33 Rationale for mangrove protection — climate resilience Coastal Ecosystems
Q37 Amur Falcons at Doyang Lake, Nagaland Migratory Birds
Q70 Green Hydrogen — electrolysis with renewables, National Mission Renewable Energy
Q72 Drone Swarms — Terahertz band, GPS spoofing Defence Tech / Environment overlap
💹

Economy & Finance

19 questions — sharply contemporary. Fintech, sustainable finance and critical minerals featured prominently, while macroeconomic concepts like crowding-out and inflation indices tested fundamentals.

Q. No Topic Chapter
Q25 Sagarmala Programme & Sagarmala 2.0 — Viksit Bharat 2047 Infrastructure
Q38 Rainfed Area Development (RAD) under NMSA — Integrated Farming Systems Agriculture Schemes
Q39 Oeko-Tex certification for Eri Silk — global textile standards Trade & Exports
Q51 Blockchain features — consortium blockchain, immutability Digital Economy
Q52 Dropshipping e-commerce model E-commerce Models
Q53 Financial Inclusion Index (FI-Index) RBI — Access, Usage, Quality RBI / Financial Inclusion
Q54 ONDC — Open Network for Digital Commerce Digital Economy
Q55 UPI vs Digital Rupee differences Payment Systems
Q56 RWA Tokenization — blockchain, 24×7 access FinTech
Q57 Sustainability Bond — environmental + social projects Sustainable Finance
Q58 M1xchange — MSME invoice discounting (Bills of Exchange) MSME Financing
Q59 Crowding Out Effect — Govt borrowing → higher interest rates Fiscal Policy
Q60 Rare Earth Elements & Critical Minerals — NCMM 2025 Strategic Minerals
Q61 Aviation insurance — Hull Insurance, Montreal Convention 1999 Insurance Sector
Q62 Crowdfunding for SMEs Alternative Finance
Q63 Committees — Malhotra (Insurance), L.C. Gupta (Derivatives), Urjit Patel (Housing), Y.H. Malegam (Microfinance) Reforms / RBI Committees
Q64 NBFCs — RBI registration, no demand deposits, no DICGC Financial Institutions
Q65 Multidimensional Poverty Index (MPI) — Alkire-Foster, NITI Aayog 12 indicators Poverty & Development
⚖️

Polity & Governance

9 questions — a balanced mix of constitutional provisions, new criminal codes (BNSS 2023) and local-governance schemes.

Q. No Topic Chapter
Q79 Article 13 — meaning of "law"; includes ordinances, custom Fundamental Rights
Q80 Constitution of India — naming, repeal of GoI Act 1935, 26 January 1950 commencement Constitutional Provisions
Q81 Rights of Persons with Disabilities Act 2018, Sugamya Bharat Abhiyan, NDFDC Social Justice
Q82 SC/ST provisions — Sixth Schedule (Assam/Meghalaya/Tripura/Mizoram), Income Tax exemption, Panchayat reservation Constitution & Tribal Provisions
Q83 Parliament Questions — Starred vs Unstarred Parliamentary Procedure
Q84 Committee on Welfare of SCs and STs — Chairperson, members composition Parliamentary Committees
Q87 Zero FIR under BNSS 2023 Criminal Law Reforms
Q88 CEIB, SFIO, CBI — controlling ministries Investigation Agencies
Q99 Revamped Rashtriya Gram Swaraj Abhiyan (RGSA) — 1 April 2021 to 31 March 2026 PRI Schemes
🔬

Science & Technology

14 questions — semiconductors, AI, biotech and India-specific R&D missions formed the core. The DHRUV64 chip and Bharat Forecast System were standout current-affairs picks.

Q.No Topic Chapter
Q44 DHRUV64 chip — DIR-V Programme; India's first 64-bit dual-core 1.0 GHz Semiconductors
Q45 IS 19445:2025 — bomb disposal standard (BIS) Defence Standards
Q46 Nobel Prize 2025 winner (UK-born, US professor) — John Clarke (Physics) International Awards
Q48 Semiconductor plants — CG Power-Renesas/STARS in Gujarat (Sanand), Tata Assam, HCL-Foxconn UP (not MP), SicSem Odisha Electronics
Q49 Bharat Forecast System — IIT-M (not Delhi); Panchayat-cluster level Weather Tech
Q66 Genetic Medicine — corrects faulty genes, lipid nanoparticles Biotechnology
Q67 Large Language Models (LLMs) — probability-based, not unbiased Artificial Intelligence
Q68 Stealth technology — RAM coating, metamaterials Defence Tech
Q69 Aircraft Black Boxes — orange (not red), titanium/stainless steel memory Aviation Tech
Q71 Private space entities — IN-SPACe, Agnikul Cosmos (3D-printed engine) Space Sector
Q73 GenomeIndia Project — DBT-funded, Indian genetic diversity Biotechnology
Q74 National Quantum Mission — 50-100 qubits, 4 T-Hubs Quantum Tech
Q75 Deep Ocean Mission — MoES (not Ports), Matsya-6000, Samudrayaan Ocean Sciences
Q85 Mission Sudarshan Chakra — air defence, BMD, by 2035 Defence Strategy
Q93 Indian defence hardware — Su-30 MKI, T-90 MK-III, Akula Class (Russia, not India) Defence Procurement
🌐

International Relations

12 questions — multilateralism, UN agencies, BIMSTEC and India’s development diplomacy in the neighbourhood dominated.

Q. No Topic Chapter
Q34 Vizhinjam International Seaport — Kerala, deep draft, reduces trans-shipment dependence India's Maritime Strategy
Q40 Strait of Hormuz — Bahrain, Qatar must cross Strategic Chokepoints
Q41 INTERPOL Notices — Silver/Blue/Black/Green matching International Police Cooperation
Q42 NIRANTAR platform — MoEFCC verticals Environmental Governance
Q43 German Chancellor visit January 2026 — MoUs (AIIA-Hamburg, Hockey, Indo-Pacific) Bilateral Relations
Q89 International Conventions not ratified by India — Migrant Workers, Refugees, Statelessness International Treaties
Q90 AI Impact Summit 2026 New Delhi — Sutras (People, Planning, Progress); 7 Chakras Pillars AI Diplomacy
Q91 ASEAN connectivity — Kaladan, IMT Trilateral Highway (NOT Agartala-Akhaura) India-ASEAN
Q92 India-supported projects — Mangdechhu (Bhutan), Stor Palace (Afghanistan), Dickoya (Sri Lanka), Maldives Neighbourhood First
Q94 Multilateral platforms — Colombo Process, Abu Dhabi Dialogue, GFMD Migration Governance
Q95 UN Agencies awarded Nobel twice — UNHCR (1954, 1981), WFP (2020) — total 2 UN Bodies
Q96 UN Peacekeeping Operations matching — UNMIL, MINURCAT, MINUSTAH, UNMISET UN Peacekeeping
Q97 BIMSTEC Centres — NOIDA, Bengaluru, Colombo, Thimphu BIMSTEC
Q100 EU Member states — Poland, Germany (Belarus & Switzerland not EU) European Union

ETHICS / CASE STUDY - 3 Questions

Q.No Topic Chapter
Q76 Public Administration — Vaccine quality scandal → Accountability Ethics in Public Service
Q77 Conflict Resolution — tribal-urban waste site dispute → multi-stakeholder dialogue, cultural sensitivity, ESIA Ethics / Governance
Q78 Confidentiality vs Transparency — contractor info dilemma → "limited disclosure" to oversight committee Ethical Dilemmas

MISCELLANEOUS - 7 Questions

Q.No Topic
Q47 Grand Slam Tennis governance (only Q3 about Wild Cards is correct)
Q50 Film 'Boom' — BAFTA Children's & Family Film; directed by Lakshmipriya Devi
Q86 Border river bridges — Maitri Setu (Feni-Bangladesh), Jhulaghat (NOT Myanmar), Mechi (Nepal)
Q98 Indian Army Corps HQs — 3 Corps Dimapur, 4 Corps Tezpur, 14 Corps Leh, 33 Corps Sukna (NOT Srinagar)

UPSC Prelims 2026 — Key Patterns & Trends Analysis

A comprehensive breakdown of question patterns, difficulty level, current affairs integration, and emerging preparation trends observed in the UPSC Prelims 2026 examination.

Question-Type Distribution

  • Statement-based “Which is correct” — ~55 questions
  • Match the Following — 6 questions
  • Pair Matching — Multiple questions
  • Direct Factual — Static + current affairs
  • Assertion-Reason — Conceptual approach
  • Ethics / Case Study — Newly introduced

Difficulty Level Assessment

  • Easy: Static NCERT-based direct questions
  • Moderate: Concept + elimination technique required
  • Tough: Multi-statement and niche current affairs
Easy — 30%
Moderate — 45%
Tough — 25%

Current Affairs Integration

  • More than 45+ questions linked directly or indirectly to current affairs.
  • Heavy focus on AI, semiconductors, governance, climate, diplomacy and finance.
  • Government schemes, summits, standards, treaties and missions played a major role.

Major Pattern Shifts

  • Ancient History gained very high weightage
  • Economy became highly conceptual
  • Science & Tech questions increased
  • IR and global governance became dominant
  • Ethics-style analytical questions introduced
  • Polity integrated with recent reforms

Top 10 Most Challenging Questions

Q.No Why It Was Challenging
Q3 Ancient-modern river pairing requiring deep Vedic geography knowledge
Q9 Niche Indian classical music question
Q17 Epigraphy-based chronology
Q22 Current affairs + geography integration
Q26 State flower factual trap
Q44 Semiconductor specification-based question
Q53 FI-Index conceptual dimensions
Q60 Rare earth and mining distribution
Q63 Committee matching complexity
Q92 Neighbourhood projects mapping

AP/Telangana-Relevant Questions

  • Q4 — Amaravati Stupa
  • Q5 — Sangam Tamilakam
  • Q24 — Velikonda Hills
  • Q17 — Aryabhata & Brahmagupta

Preparation Strategy Takeaways

  • Focus deeply on Art & Culture micro-topics
  • Prepare 2024–2026 current affairs comprehensively
  • Improve Economy conceptual clarity
  • Strengthen AI, Quantum & Semiconductor coverage
  • Study UN bodies and diplomacy thoroughly
  • Practice elimination-based MCQ solving

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