UPSC Syllabus: The Architecture of Administrative Assessment

The Union Public Service Commission (UPSC) Civil Services Examination (CSE) is widely regarded as one of the most rigorous intellectual challenges in the global landscape of competitive assessments. It serves not merely as a recruitment mechanism for India’s premier services—the Indian Administrative Service (IAS), the Indian Police Service (IPS), and the Indian Foreign Service (IFS)—but also as a comprehensive evaluation of a candidate’s cognitive depth, ethical grounding, and administrative potential. The Latest UPSC syllabus, often perceived as an expansive ocean of information, is in reality a carefully architected blueprint designed to identify individuals capable of navigating the complex socio-political and economic realities of modern governance

Here, CivilsPrimer Expert Team provides an exhaustive, granular compilation of the Latest IAS Exam Syllabus, deconstructing it from broad subject headings into specific chapters, micro-topics, and core concepts. By synthesising official notifications with the “hidden syllabus” derived from years of question patterns, this document aims to provide a definitive reference for the academic demands of the examination. 

The analysis is structured to guide a prospective administrator through the three-tiered selection process: the objective Civil Services Preliminary Examination, the subjective Civil Services Main Examination, and the Personality Test, with a primary focus on the academic content of the written stages.

Preliminary Examination: The Foundation of General Studies

The Preliminary Examination serves as the primary screening stage, assessing candidates on their breadth of knowledge and analytical aptitude. The Examination shall comprise two compulsory papers of 200 marks each: General Studies Paper I and General Studies Paper II (CSAT). While the questions are objective, the conceptual depth required is comparable to that of the Main Examination.

This paper determines the cut-off for the Main Examination. The syllabus is officially categorised into seven broad areas, but effective preparation requires a breakdown into detailed chapters and concepts.

General Studies Paper I: Subject-Wise Micro-Analysis

  1. Current events of national and international importance.
  2. History of India and the Indian National Movement.
  3. Indian and World Geography – Physical, Social, Economic Geography of India and the World.
  4. Indian Polity and Governance – Constitution, Political System, Panchayati Raj, Public Policy, Rights Issues, etc.
  5. Economic and Social Development, Sustainable Development, Poverty, Inclusion, Demographics, Social Sector initiatives, etc.
  6. General issues on Environmental Ecology, Bio-diversity and Climate Change – that do not require subject specialisation.
  7. General Science.

  • Prehistoric India: The syllabus begins with the Stone Age, necessitating a distinction between the Palaeolithic, Mesolithic, and Neolithic periods based on tool technology and subsistence patterns. The Chalcolithic Age marks the transition to metal usage.
  • Indus Valley Civilization (IVC): This is a high-yield topic. Candidates must analyze the Origin and Extent of the civilization, key sites (Harappa, Mohenjo-Daro, Lothal, Dholavira), and their specific features (Great Bath, Dockyard). Core concepts include Urban Planning, Drainage Systems, Script and Language, Social Stratification, and theories regarding its Decline
  • Vedic Period: The transition from the Early Vedic (Rig Vedic) to the Later Vedic period is critical. Key concepts include the Varna System, Sabha and Samiti, the nature of Aryan Migration, and the evolution of religious rituals (Yajnas)
  • Mahajanapadas and Rise of Magadha: The “Second Urbanization” led to the formation of sixteen Mahajanapadas. The rise of Magadha under the Haryanka, Shishunaga, and Nanda dynasties set the stage for the Mauryan Empire.
  • Religious Reforms: The genesis of Buddhism and Jainism is pivotal. Detailed study is required of the life of Buddha and Mahavira, their teachings (Four Noble Truths, Eightfold Path, Tri-ratnas), the Buddhist Councils, and the schism into sects (Hinayana, Mahayana, Vajrayana, Digambara, Svetambara)
  • Mauryan Empire: This chapter covers the first major pan-Indian empire. Key topics include Chandragupta Maurya, the Arthashastra polity, Ashoka’s Dhamma, and Mauryan Art (Stupas, Pillars, Caves).
  • Post-Mauryan Period: The period of flux involving foreign invasions (Indo-Greeks, Shakas, Kushanas) and indigenous powers (Satavahanas, Sungas) is crucial for art and culture (Gandhara, Mathura, Amravati schools).
  • Gupta Empire: Often termed the “Golden Age,” this section focuses on the administrative system, the revival of Brahmanism, and advancements in Science and Literature (Kalidasa, Aryabhata).
  • Sangam Age: The history of South India under the Cheras, Cholas, and Pandyas, primarily reconstructed through Sangam Literature

The study of ancient history focuses on the evolution of society, culture, and state formation.

  • Early Medieval: The Tripartite Struggle (Palas, Pratiharas, Rashtrakutas) and the Chola Empire (noted for local self-government and naval power).
  • Delhi Sultanate: The five dynasties (Slave, Khilji, Tughlaq, Sayyid, Lodi). Concepts include the Iqta System, Market Reforms of Alauddin Khilji, and the administrative experiments of Muhammad bin Tughlaq.
  • Mughal Empire: The consolidation of power from Babur to Aurangzeb. Key themes are the Mansabdari System, Jagirdari Crisis, Religious Policies (Sulh-i-kul), and the development of Indo-Islamic architecture
  • Bhakti and Sufi Movements: The socio-religious reform movements featuring saints like Kabir, Guru Nanak, Mirabai, and the Chishti and Suhrawardi Sufi orders.
  • Regional Kingdoms: The rise of the Marathas (Shivaji’s administration, Ashtapradhan) and the Vijayanagara Empire (Nayankara system)

  • Advent of Europeans: The arrival of the Portuguese, Dutch, English, and French, culminating in the Carnatic Wars and the establishment of British supremacy.
  • British Expansion: The policies of Subsidiary Alliance and Doctrine of Lapse; wars with Mysore, Marathas, and Sikhs.
  • Economic Impact: The Land Revenue Systems (Zamindari, Ryotwari, Mahalwari), Commercialization of Agriculture, and Deindustrialization (Drain of Wealth theory).
  • Revolt of 1857: Causes (political, social, military), spread, suppression, and the Queen’s Proclamation of 1858.
  • Socio-Religious Reforms: The 19th-century renaissance led by Raja Ram Mohan Roy (Brahmo Samaj), Dayanand Saraswati (Arya Samaj), Vivekananda, and Ishwar Chandra Vidyasagar.
  • Freedom Struggle:
    • Moderate Phase (1885-1905): Petition politics, formation of INC.
    • Extremist Phase (1905-1917): Swadeshi Movement, Surat Split.
    • Gandhian Era (1917-1947): Non-Cooperation, Civil Disobedience, Quit India Movement.
    • Revolutionary Nationalism: HRA, HSRA, Bhagat Singh, Subhash Chandra Bose (INA).
    • Partition and Independence: Mountbatten Plan, Indian Independence Act 1947

BranchKey Topics & Concepts
GeomorphologyInterior of Earth (Crust, Mantle, Core), Plate Tectonics Theory, Continental Drift, Sea Floor Spreading, Earthquakes & Volcanoes, Rock Cycle, Landforms (Fluvial, Aeolian, Glacial, Karst)
ClimatologyAtmosphere Structure, Insolation & Heat Budget, Temperature Inversion, Pressure Belts & Wind Systems (Trade winds, Westerlies), Jet Streams, Air Masses, Fronts, Cyclones (Tropical vs Temperate), Climate Classification (Köppen)
OceanographyOcean Bottom Relief, Temperature & Salinity Distribution, Ocean Currents (Atlantic, Pacific, Indian), Tides, Coral Reefs (Formation, Bleaching), Marine Pollution
Indian GeographyPhysiographic Divisions (Himalayas, Plains, Plateau, Islands), Drainage System (Himalayan vs Peninsular), Monsoon Mechanism (El Nino, La Nina, IOD), Soils of India (ICAR classification), Natural Vegetation
Economic GeographyAgriculture (Cropping patterns, Crops Climate Requirements, Green Revolution), Mineral Resources (Iron, Coal, Petroleum and Gas distribution, Critical and Strategic Minerals), Industries (Location factors for Steel, Cotton, IT), Transport (Air, Rail, Road, Waterways, Pipelines)
Human GeographyDemography (Population pyramids, Demographic transition theory), Migration (Push/Pull factors), Settlement patterns (Rural/Urban), Tribes and Racial groups

  • Constitutional Framework: Evolution of Indian Constitution, Preamble, Union and its Territory, Citizenship (Current Affairs such as CAA/NRC, SIR revisions).
  • Fundamental Rights (FR): Detailed analysis of Articles 12-35, distinct features of Writs (Habeas Corpus, Mandamus, etc.), and landmark judgments (Kesavananda Bharati, Puttaswamy case).
  • Directive Principles (DPSP) & Duties: Classification of DPSP (Socialist, Gandhian, Liberal-Intellectual), Relationship between FR and DPSP, Fundamental Duties (Article 51A).
  • System of Government: Parliamentary vs Presidential, Federal vs Unitary, Centre-State Relations (Legislative, Administrative, Financial).
  • Union Executive & Legislature: President (Election, Pardoning powers), Vice-President, Prime Minister, Council of Ministers, Parliament (Sessions, Motions, Bills, Budget, Committees).
  • State Executive & Legislature: Governor (Discretionary powers), Chief Minister, State Legislature.
  • Judiciary: Supreme Court (Original, Appellate, Advisory jurisdiction), High Courts, Subordinate Courts, Judicial Activism, PIL, Collegium System.
  • Local Government: Panchayati Raj (73rd Amendment, PESA) and Urban Local Bodies (74th Amendment).
  • Constitutional Bodies: ECI, UPSC, SPSC, Finance Commission, CAG, NCSC, NCST, NCBC, GST Council.
  • Non-Constitutional Bodies: NITI Aayog, NHRC, CIC, CVC, Lokpal, CBI

  • National Income Accounting: Concepts of GDP, GNP, NNP, GVA, Methods of calculation, Real vs Nominal GDP, GDP Deflator.
  • Money and Banking: Functions of RBI, Monetary Policy Tools (Repo, Reverse Repo, CRR, SLR, OMO), Banking Structure (PSBs, Private, RRBs, Cooperatives), NPA Crisis, Basel Norms, Financial Inclusion
  • Fiscal Policy: Budgeting (Revenue/Capital receipts & expenditure), Deficits (Fiscal, Revenue, Primary), FRBM Act, Taxation (GST, Direct Taxes), Finance Commission.
  • Inflation: Types (Demand-pull, Cost-push), Indices (WPI, CPI), Effects on economy, Control measures.
  • External Sector: Balance of Payments (Current/Capital Account), Exchange Rates (NEER, REER), Forex Reserves, Convertibility, FDI vs FII, International Organizations (IMF, WTO, World Bank, ADB)
  • Social Development: Poverty (Lines, Committees), Unemployment (Types), Inequality (Lorenz Curve, Gini Coefficient), SDGs, Human Development Index (HDI)

  • Ecology: Ecosystem components, Food Chain/Web, Ecological Pyramids, Biomagnification, Biogeochemical Cycles (Nitrogen, Carbon, Phosphorous).
  • Biodiversity: Levels of Diversity, Biodiversity Hotspots, IUCN Red List, Protected Areas (National Parks, Wildlife Sanctuaries, Biosphere Reserves), Tiger Reserves
  • Climate Change: Greenhouse Effect, Global Warming, Ozone Depletion, Ocean Acidification, Mitigation Strategies (Carbon Credit, Carbon Tax).
  • Legislation & Conventions: Wildlife Protection Act 1972, Environment Protection Act 1986, Biodiversity Act 2002, UNFCCC (Kyoto, Paris Agreement), CBD (Nagoya, Cartagena Protocols), CITES, Ramsar Convention.

  • Basic Science: Application-based Physics, Chemistry, and Biology (Diseases, Vitamins, Vaccines).
  • Space Technology: Orbits (LEO, GEO), Launch Vehicles (PSLV, GSLV, SSLV), Missions (Chandrayaan, Mangalyaan, Gaganyaan), Gravitational Waves, Black Holes.
  • Defence Technology: Missile Systems (Ballistic vs Cruise), Submarines (Scorpene, Nuclear), Aircraft, Drones.
  • Biotechnology: Genetic Engineering, CRISPR-Cas9, Cloning, Stem Cells, GM Crops.
  • IT & Computers: AI, Big Data, Blockchain, Cryptocurrency, 5G/6G, IoT, Quantum Computing, Supercomputers.
  • Nanotechnology: Basics and applications in medicine/industry.

General Studies Paper II (CSAT): Aptitude and Reasoning

This qualifying paper (minimum 33% or 66 marks) assesses administrative aptitude.

  • Comprehension: Reading complex passages from diverse fields (philosophy, science, economy) and answering inference-based questions.
  • Interpersonal Skills: Communication and situational judgment.
  • Logical Reasoning: Syllogism, Blood Relations, Directions, Seating Arrangement, Series, Coding-Decoding, Statement-Assumption/Conclusion.
  • Quantitative Aptitude: Number System, HCF/LCM, Averages, Ratio & Proportion, Percentage, Profit & Loss, Time & Work, Time, Speed & Distance, Permutation & Combination, Probability, Mensuration.
  • Data Interpretation: Tables, Bar Graphs, Pie Charts, Line Graphs, Data Sufficiency

Main Examination: The Core Assessment

The Main Examination is the decisive phase, comprising nine papers: two qualifying language papers and seven merit-counting papers.

Qualifying Papers: Language Competency

These papers are of the Matriculation level but are mandatory.Failure in these leads to the non-evaluation of other GS papers.

Candidates must choose one language from the Eighth Schedule of the Constitution.

  • Comprehension: Understanding of given passages.
  • Précis Writing: Summarizing a text to one-third of its length.
  • Usage and Vocabulary: Synonyms, Antonyms, Idioms, Corrections.
  • Short Essays: Writing on general topics.
  • Translation: English to Indian Language and Indian Language to English.

  • Comprehension: Analyzing English passages.
  • Précis Writing: Summarizing English texts.
  • Usage and Vocabulary: Grammar correction, sentence structuring, supply of missing words.
  • Short Essays: Expressing ideas clearly in English

Paper I: Essay (250 Marks)

The Essay paper tests the ability to compose a coherent, multi-dimensional piece of writing. Candidates must write two essays (1000-1200 words each) from two sections (Section A and Section B).

Themes and Trends:

  • Philosophical/Abstract: Topics like “Simplicity is the ultimate sophistication” or “Truth is lived, not taught.” Requires interpreting abstract concepts through concrete examples from history, society, and personal life.
  • Social/Political: Issues like Federalism, Women’s Empowerment, Education, and Health.
  • Economic: Growth vs. Development, Inequality, Globalisation.
  • Technological: AI and Ethics, Social Media impacts.
  • International: Soft Power, Global Order.

Key Requirements:

  • Structure: Introduction (Hook/Thesis), Body (Dimensions: Social, Political, Economic, Environmental, Ethical), Conclusion (Synthesis/Way Forward).
  • Flow: Seamless transition between paragraphs.
  • Content: Use of anecdotes, quotes, data, and case studies

Explore Essay PYQs for UPSC Mains: Identify Trends (2013-Onwards)

Understand the UPSC Essay Paper in action. Access Essay Paper, previous year questions mapped directly to the UPSC Syllabus terms for focused and effective preparation.

General Studies Paper 1: Heritage, History, Geography, and Society

  • Visual Arts
    • Architecture: Harappan, Mauryan (Stupas), Gupta (Temple origins), Temple Styles (Nagara, Dravida, Vesara), Indo-Islamic (Arcuate, Minarets), Colonial (Gothic, Indo-Saracenic).
    • Sculpture: Indus seals, Gandhara vs Mathura vs Amravati schools, Chola Bronze (Nataraja).
    • Paintings: Mural (Ajanta, Ellora), Miniature (Mughal, Rajput, Pahari), Folk (Madhubani, Warli).
  • Performing Arts:
    • Dance: 8 Classical forms (Bharatanatyam, Kathak, Kathakali, Mohiniyattam, Kuchipudi, Odissi, Manipuri, Sattriya) and Folk dances.
    • Music: Hindustani vs Carnatic styles.
    • Theatre: Traditional forms like Yakshagana, Bhand Pather, Nautanki.
    • Literary Arts: Vedic literature, Sangam literature, Bhakti poetry, Chronicles

  • Mid-18th Century: Fragmentation of Mughal Empire, Rise of regional states.
  • Freedom Struggle: Detailed study of phases—1857 Revolt, Moderate era, Swadeshi Movement, Gandhian Mass Movements (NCM, CDM, QIM), Revolutionary activities, INA, RIN Mutiny.
  • Personalities: Contributions of Gandhi, Nehru, Ambedkar, Patel, Bose, Tagore, Tilak, Bhagat Singh, etc.
  • Post-Independence Consolidation: Integration of Princely States (Operation Polo, Junagadh), Linguistic Reorganization of States (SRC Act), Tribal integration, Wars (1962, 1965, 1971), Emergency (1975), Land Reforms, Green Revolution

  • Enlightenment & Modern Ideas: Kant, Rousseau.
  • Industrial Revolution: Causes, Impact on society/economy.
  • Nation State System: Unification of Germany and Italy.
  • Imperialism & Colonialism: Scramble for Africa, Colonization of Asia.
  • Revolutions: American Revolution, French Revolution, Russian Revolution.
  • World Wars: Causes and consequences of WWI and WWII.
  • Cold War: Bipolar world, NAM, Korean/Vietnam wars, Disintegration of USSR.
  • Political Philosophies: Capitalism, Socialism, Communism

  • Salient Features: Caste System, Family/Kinship, Unity in Diversity.
  • Women’s Issues: Role of women, Women’s organizations, Patriarchal challenges, Laws.
  • Population & Urbanization: Demographic dividend, Migration, Slums, Smart Cities.
  • Globalization: Impact on culture, language, family, economy.
  • Social Empowerment: Issues of SC/ST/OBC/Minorities/Elderly/Disabled.
  • Ideological Issues: Communalism, Regionalism, Secularism.2

  • Physical Geography: Key concepts of Geomorphology, Climatology, Oceanography (as in Prelims but descriptive).
  • Resource Distribution: Global distribution of key natural resources (Iron, Coal, Petroleum, Rare Earths).
  • Industrial Location: Factors responsible for location of primary, secondary, tertiary industries (Weber’s theory).
  • Geophysical Phenomena: Earthquakes, Tsunamis, Volcanoes, Cyclones.
  • Critical Geography: Changes in flora/fauna, melting ice caps, shrinking water bodies

Explore GS1 PYQs for UPSC Mains: Identify Trends (2013-Onwards)

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General Studies Paper 2: Polity, Constitution, Governance, Social Justice, International Relations

  • Evolution & Features: Historical underpinnings, Salient features, Basic Structure Doctrine.
  • Functions & Responsibilities: Union vs States, Devolution of powers to local levels.
  • Separation of Powers: Checks and balances, Dispute redressal mechanisms.
  • Comparison: Indian Constitution vs USA, UK, France, etc.
  • Parliament & Legislatures: Structure, functioning, conduct of business, powers & privileges.
  • Executive & Judiciary: Ministries, Departments, Pressure groups, Judiciary structure & issues.
  • RPA: Representation of People’s Act (Salient features).
  • Constitutional Bodies: Appointment, powers, responsibilities.
  • Statutory/Regulatory Bodies: NGT, TRAI, SEBI, CCI, etc.

  • Government Policies: Interventions in health, education, etc.
  • Development Processes: Role of NGOs, SHGs, Donors, Charities.
  • Welfare Schemes: For vulnerable sections, performance and mechanisms.
  • Institutional Frameworks: Laws and bodies for protection of the vulnerable.
  • Governance Concepts: Transparency, Accountability, E-Governance (Applications, models, success, limitations), Citizen Charters, RTI.
  • Civil Services: Role in democracy (Steel frame vs changing role).

  • Health: Healthcare infrastructure, Ayushman Bharat, Malnutrition.
  • Education: NEP 2020, Higher education, Primary education, Digital divide.
  • Human Resources: Skilling, Vocational training, Demographic dividend.
  • Poverty & Hunger: Issues, Food security, SDG targets.

  • Neighbors: India’s relations with Pakistan, China, Nepal, Bangladesh, Sri Lanka, Bhutan, Myanmar, Afghanistan, Maldives.
  • Groupings: Bilateral, Regional (SAARC, BIMSTEC, ASEAN), Global (UN, WTO, G20, BRICS, SCO, QUAD).
  • Global Politics: Effect of policies of developed/developing countries on India (US Fed rates, China’s BRI).
  • Diaspora: Role and issues of Indian diaspora.
  • Institutions: Structure and mandate of global bodies.

Explore GS2 PYQ for UPSC Mains: Trend Analysis (2013-Onwards)

Access GS2 PYQ with syllabus-linked questions and trend insights to improve answer writing for UPSC Civil Services Mains.

General Studies Paper 3: Economy, Technology, Environment, Security, Disaster Management

  • Planning & Growth: Indian economy issues, mobilization of resources, growth vs development, employment.
  • Inclusive Growth: Financial inclusion, Inequality reduction.
  • Budgeting: Components of Government Budget.
  • Agriculture:
    • Crops: Major cropping patterns, Millets.
    • Irrigation: Types, Micro-irrigation.
    • Marketing: APMC, e-NAM, Supply chain.
    • Technology: E-technology in aid of farmers.
    • Subsidies: Direct/Indirect, MSP issues, WTO norms.
    • PDS: Functioning, limitations, buffer stocks, Food Security.
    • Food Processing: Scope, significance, supply chain management.
  • Land Reforms: History and impact.
  • Liberalization: Effects on economy, Industrial policy changes.
  • Infrastructure: Energy, Ports, Roads, Airports, Railways.
  • Investment Models: PPP, FDI models.

  • Developments: Application in everyday life.
  • Indigenization: Developing technology locally.
  • New Technologies: IT, Space, Computers, Robotics, Nanotech, Biotech.
  • IPR: Intellectual Property Rights issues.

  • Conservation: Strategies, Protected areas.
  • Pollution: Air, Water, Noise, E-waste, Plastic.
  • EIA: Environmental Impact Assessment.

  • Disasters: Natural (Flood, Cyclone, Earthquake, Drought) & Man-made.
  • Management: Frameworks (Sendai), NDMA, NDRF, Mitigation strategies.

  • Extremism: Linkages between development and extremism (Naxalism).
  • Non-State Actors: Role in internal security.
  • Cyber Security: Basics, threats, money laundering.
  • Border Management: Challenges, organized crime linkages (Terrorism, Drugs).
  • Security Forces: Mandate of various agencies (CAPFs, NIA, RAW, IB).

GS3 PYQ for UPSC Mains – Trend Analysis

Explore GS3 PYQ UPSC Mains with subject-wise previous year questions covering Economy, Environment, Agriculture, Science and Technology, Internal Security.

General Studies Paper 4: Ethics, Integrity, and Aptitude

TopicSubtopics & Concepts
Ethics & Human InterfaceEssence, Determinants, Consequences of ethics; Ethics in private vs public relationships; Human Values (Lessons from leaders, reformers, administrators); Role of family/society/education in value inculcation.
AttitudeContent, Structure, Function; Influence on thought/behavior; Moral & Political Attitude; Social Influence and Persuasion.
AptitudeIntegrity, Impartiality, Non-partisanship, Objectivity, Dedication to public service, Empathy, Tolerance, Compassion.
Emotional IntelligenceConcepts, Utilities, Application in administration and governance.
Moral ThinkersContributions of thinkers from India (Gandhi, Ambedkar, Kautilya) and World (Plato, Kant, Mill, Rawls).
Public Service ValuesStatus and problems; Ethical concerns in govt/private institutions; Laws/Rules/Conscience as guidance; Accountability; Corporate Governance; International Ethics
Probity in GovernanceConcept of public service; Philosophical basis; RTI; Codes of Ethics/Conduct; Citizen Charters; Work Culture; Corruption
Case StudiesApplied ethics scenarios testing the above concepts.

GS4 PYQ for UPSC Mains – Ethics Paper Previous Year Questions

Explore GS4 PYQ UPSC Mains with topic-wise Ethics previous year questions, including theory, case studies, and trend analysis for focused preparation.

Conclusion

The UPSC CSE syllabus is a living document. While the core topics in History and Physical Geography remain static, the vast majority of the syllabus—Polity, Economy, Environment, Science, IR—is dynamic. A successful aspirant must not view these subjects in isolation. The “Inter-disciplinary Linkages” are the key to high scores: understanding how geography dictates international relations, how society influences polity, and how ethics must underpin economy.

This compilation serves as the foundational map. The journey involves layering this map with current affairs, critical analysis, and consistent answer-writing practice. The syllabus is not just what to study; it is a guide on how to think like a civil servant.