UPSC IFoS (Indian Forest Service) Syllabus 2026

The complete UPSC IFoS (Indian Forest Service) syllabus for 2026 — 8 sections and 43 topics in all, organised exactly as the Union Public Service Commission (UPSC) prescribes. Use it as your revision checklist, then test yourself with a free UPSC IFoS (Indian Forest Service) mock below.

Indian History & Culture6 topics

Ancient India (Indus Valley, Vedic age, Mahajanapadas, Maurya and Gupta empires, ancient ports and trade)
Medieval India (Delhi Sultanate, Vijayanagara, Bahmani, Mughals, regional kingdoms, Bhakti and Sufi movements)
Modern India (advent of Europeans, British expansion, 1857 revolt, socio-religious reform movements)
Freedom Struggle 1885-1947 (Congress, partition of Bengal, Swadeshi, Gandhian phases, Quit India, INA, Cabinet Mission, Independence and Partition) and post-Independence consolidation (princely states integration, linguistic states reorganisation)
Art and Culture (classical and folk dance forms; schools of painting — Mughal, Rajput, Pahari, Tanjore; classical music gharanas; UNESCO World Heritage Sites in India)
Architecture (Buddhist stupas, Hindu temple styles — Nagara, Dravida, Vesara; Indo-Islamic, colonial) and literature traditions (Sanskrit, Tamil Sangam, Bhakti, modern Indian literature)

Indian Geography (with physical and economic geography emphasis)7 topics

Physical geography of India (Himalayas, Western and Eastern Ghats; major plateaus; coastal plains) and drainage systems (Indus, Ganga, Brahmaputra; peninsular rivers — Mahanadi, Godavari, Krishna, Kaveri; west-flowing — Narmada, Tapi)
Climate of India (monsoon mechanism, Western Disturbances, Köppen classification) and soils of India (alluvial, black/regur, red, laterite, arid, forest, peaty/marshy — properties and distribution)
Natural vegetation zones (tropical evergreen, deciduous, thorn, montane, mangrove — distribution and conservation status)
Agriculture (cropping patterns, Green/White/Blue/Yellow Revolutions, MSP, irrigation systems)
Mineral and energy resources (coalfields, iron-ore belts, bauxite, oil and gas basins, renewables potential)
Population and settlement geography (Census 2011 patterns, urbanisation, tribal regions)
World physical geography fundamentals (plate tectonics, ocean currents, wind systems, climatic regions)

Indian Polity & Governance5 topics

Making of the Constitution (GoI Acts 1858/1909/1919/1935, Constituent Assembly); Preamble, Fundamental Rights (Articles 14-32), Directive Principles, Fundamental Duties
Union and State executive (President, VP, PM, Council of Ministers, Governor, CM); Parliament and State Legislatures (composition, powers, procedure, committees); Judiciary (SC, HCs, judicial review, PIL, basic structure)
Federal structure, centre-state relations, finance commissions, GST Council; Local government — Panchayati Raj (73rd), Municipalities (74th), Fifth and Sixth Schedules for Scheduled/Tribal Areas
Constitutional bodies (ECI, CAG, UPSC, AGI, Finance Commission, NCSC, NCST, NCBC) and statutory/regulatory bodies (CIC, CVC, NHRC, NGT, NCLT, TRAI, SEBI, RBI)
All-India Services framework, Article 312, Forest Service Rules

Economics & Development5 topics

National income (GDP, GNP, NDP, NNP, real vs nominal, sectoral composition) and Indian planning (Five-Year Plans, NITI Aayog, sustainable development indicators)
Public finance (budget process, fiscal deficit, FRBM Act, finance commission devolution) and monetary policy (RBI, MPC, repo/reverse-repo, CRR/SLR, inflation targeting)
Banking and financial markets (PSBs, NBFCs, IBC, SEBI, capital and money markets) and external sector (BoP, current account, capital account, FDI/FPI, forex reserves, FTAs)
Inclusive growth and poverty (estimation methodologies, multidimensional poverty, MGNREGA, PMJAY) and agricultural economics (MSP, PDS, agri-credit, FPOs, contract farming, agri-export policy)
Industrial policy (MSMEs, Make in India, PLI schemes) and sustainable development / green finance (carbon markets, green bonds, ESG)

Environment & Ecology (deepest weightage — most strategic for IFoS)8 topics

Ecology fundamentals (ecosystems, food chains and webs, energy flow, ecological pyramids, biogeochemical cycles)
Biodiversity concepts and levels (genetic, species, ecosystem); India's 4 biodiversity hotspots (Western Ghats, Eastern Himalaya, Indo-Burma, Sundaland-Nicobar); IUCN Red List Indian species in CR/EN/VU categories (Great Indian Bustard, Pygmy Hog, Northern River Terrapin, Gharial, Hangul, Lion-tailed Macaque, Olive Ridley)
Indian biosphere reserves (all 18 — Nilgiri, Nanda Devi, Sundarbans, Manas, Pachmarhi, Similipal, Dihang-Dibang, Dibru-Saikhowa, Agasthyamalai, Great Nicobar, Gulf of Mannar, Kachchh, Cold Desert, Achanakmar-Amarkantak, Seshachalam, Panna, Nokrek, Khangchendzonga) and India's national parks / tiger reserves network (Project Tiger 1973, 50+ tiger reserves, NTCA)
Wildlife (Protection) Act 1972 — Schedules I to IV after the 2022 amendment, hunting prohibition, CITES Appendices integration, sanctuary vs national park vs conservation reserve vs community reserve
Forest Conservation Act 1980 and Forest Conservation (Amendment) Act 2023 (renamed Van (Sanrakshan Evam Samvardhan) Adhiniyam) — exemptions, controversies; Compensatory Afforestation Fund Act (CAMPA) 2016; Joint Forest Management (JFM), Forest Rights Act 2006, community forest resource rights
Forest Survey of India (FSI) biennial ISFR — forest cover vs tree cover, very dense / moderately dense / open forest classes; Pollution Acts — Water Act 1974, Air Act 1981, Environment (Protection) Act 1986, Hazardous Waste Rules, Solid Waste Management Rules 2016, Plastic Waste Management Rules
Climate change architecture — UNFCCC, Kyoto Protocol, Paris Agreement, India's NDCs, LiFE mission, NAPCC and its 8 missions; international environmental conventions — CBD, CITES, Ramsar (Indian Ramsar sites and recent additions), Bonn, Stockholm POPs, Montreal Protocol, Minamata
MoEFCC institutions — NTCA, Wildlife Crime Control Bureau, Central Zoo Authority, National Biodiversity Authority, ICFRE and its 9 institutes

Science & Technology4 topics

Space technology — ISRO missions (Chandrayaan series, Mangalyaan, Aditya-L1, Gaganyaan, NavIC, GSLV/PSLV/LVM-3) and atomic/nuclear programme (three-stage programme, PHWR, FBR, AHWR, DAE institutions)
Defence technology (DRDO missile systems — Agni, Prithvi, BrahMos, Akash; Tejas, INS Vikrant) and information technology (AI/ML basics, cybersecurity — CERT-In, IT Act 2000; 5G/6G, semiconductors)
Biotechnology (DNA fingerprinting, GM crops, CRISPR, gene therapy, biosafety levels, India's BT Cotton experience) and health/biology (vaccines, infectious diseases — TB, malaria, dengue, zoonoses relevant to forest-fringe communities)
Energy technology (solar PV vs CSP, wind, green hydrogen, nuclear, energy storage, India's RE targets) and forest-relevant tech (remote sensing — Bhuvan, FSI satellite mapping; e-Green Watch, M-STrIPES patrolling)

Current Affairs (last 12-18 months)4 topics

Major government schemes (PM-* schemes; environmental/forest schemes — Green India Mission, MISHTI mangroves, Amrit Dharohar), awards (Padma, Indira Gandhi Paryavaran Puraskar, Earth Champions) and appointments (CJI, CEC, RBI Governor, NITI VC, CAG, PCCFs)
Sports (Olympics, Asian Games, Khelo India), defence updates (exercises, inductions, neighbourhood security) and books/authors (recent significant policy non-fiction)
International summits and India's role (G20, BRICS, SCO; UNFCCC and CBD COP outcomes)
Reports and indices (Global Hunger Index, HDI, ND-GAIN, EPI, NCRB crime statistics, ISFR latest edition)

International Relations4 topics

India and its neighbourhood — Pakistan, China, Nepal, Bhutan, Bangladesh, Sri Lanka, Maldives, Myanmar, Afghanistan
India and major powers (USA, Russia, UK, France, Germany, EU) and Look East / Act East policy (ASEAN, BIMSTEC, Mekong-Ganga)
India and the Indo-Pacific — Quad, SAGAR doctrine, blue economy, maritime forestry concerns; multilateral groupings — UN, G20, BRICS, SCO, NAM, Commonwealth, IORA
International environmental diplomacy (UNFCCC COP, CBD COP, Ramsar, UNCCD COP, International Solar Alliance, CDRI) and trade/diaspora diplomacy (WTO, India-UK FTA, India-EU FTA, RCEP context; OCI and dual citizenship debate)

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