UPSC Civil Services Examination Syllabus (Prelims + Mains) – Complete Guide

The Union Public Service Commission (UPSC) conducts the Civil Services Examination (CSE) annually to recruit candidates for prestigious positions like IAS, IPS, IFS, and other Group A & B services. This exam is conducted in three stages:

  1. Preliminary Examination (Prelims)
  2. Main Examination (Mains)
  3. Personality Test (Interview)

Let’s explore the complete UPSC syllabus, stage by stage, in detail.


Stage 1: UPSC Prelims Syllabus

The Preliminary Examination is the first hurdle and consists of two objective-type papers:

Paper I – General Studies (GS-I)

  • Current affairs of national and international importance
  • History of India and Indian National Movement
  • Indian and World Geography – Physical, Social, Economic
  • Indian Polity and Governance – Constitution, Political System, Panchayati Raj, Public Policy, Rights Issues, etc.
  • Economic and Social Development – Sustainable Development, Poverty, Inclusion, Demographics, Social Sector Initiatives
  • Environmental Ecology, Biodiversity, and Climate Change – general issues (no subject specialization required)
  • General Science

πŸ“Œ Marks: 200
πŸ“Œ Duration: 2 Hours
πŸ“Œ Nature: Qualifying for Mains eligibility (marks not counted in final ranking)

Paper II – CSAT (GS Paper-II)

  • Comprehension
  • Interpersonal skills including communication
  • Logical reasoning and analytical ability
  • Decision-making and problem-solving
  • General mental ability
  • Basic numeracy (Class X level)
  • Data interpretation (Class X level)

πŸ“Œ Marks: 200
πŸ“Œ Duration: 2 Hours
πŸ“Œ Nature: Qualifying (33% minimum required)


Stage 2: UPSC Mains Syllabus

The Main Examination is descriptive in nature and assesses the depth of understanding and analytical skills. It consists of 9 papers, out of which 7 are counted for merit and 2 are qualifying in nature.

Qualifying Papers

Paper A – Indian Language (Any one from the 8th Schedule)

  • Essay writing
  • Translation (English to chosen language and vice versa)
  • Precis writing
  • Grammar and basic comprehension

Paper B – English

  • Essay writing
  • Precis writing
  • Comprehension
  • Grammar and vocabulary

πŸ“Œ Each carries 300 marks. You must secure at least 25% in both.


Merit-Based Papers (Counted for Ranking)

Paper I – Essay

  • Two essays to be written from given options
  • Focus on clarity, coherence, and presentation

πŸ“Œ Marks: 250


Paper II – General Studies I (GS-I)

  • Indian Heritage and Culture
  • Modern Indian History and Freedom Struggle
  • World History
  • Geography – physical, social, economic geography of India and the world
  • Society – diversity, population issues, social empowerment

πŸ“Œ Marks: 250


Paper III – General Studies II (GS-II)

  • Indian Constitution and Polity
  • Governance and Public Policy
  • Role of Civil Services
  • International Relations – India and its neighborhood, bilateral and multilateral relations
  • Welfare schemes and rights issues

πŸ“Œ Marks: 250


Paper IV – General Studies III (GS-III)

  • Indian Economy and Planning
  • Agriculture, Inclusive Growth
  • Science and Technology
  • Environment, Disaster Management
  • Security – internal and external threats

πŸ“Œ Marks: 250


Paper V – General Studies IV (GS-IV)

  • Ethics and Human Interface
  • Attitude, Integrity, and Aptitude
  • Emotional Intelligence
  • Moral Thinkers and Philosophers
  • Public/Civil Service Values
  • Case Studies on ethical dilemmas

πŸ“Œ Marks: 250


Paper VI & VII – Optional Subject Papers I & II

You must choose one optional subject, and it will have two papers:

  • Paper I – concepts and theories
  • Paper II – application and Indian context

πŸ“Œ Each carries 250 marks, totaling 500 marks.

πŸ”Ή Popular optional subjects: Geography, Public Administration, Sociology, History, PSIR, Anthropology, etc.


Stage 3: UPSC Interview (Personality Test)

  • Conducted by the UPSC board to assess the personality, attitude, and suitability for a career in civil services.
  • Focuses on general awareness, depth of thinking, communication skills, decision-making, and ethical integrity.

πŸ“Œ Marks: 275


Final Merit

  • Total Marks for Ranking = 1750 (Mains) + 275 (Interview) = 2025 Marks
  • Qualifying papers (Language & English) are not included in merit calculation but must be cleared.

Final Words

The UPSC syllabus is vast and challenging but not impossible. A strategic approach, consistent preparation, and a solid understanding of each section can help you crack it. Use this detailed UPSC syllabus as a blueprint for your study plan.

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