UPSC Syllabus 2025: Complete Guide for Prelims, Mains & Interview

The Union Public Service Commission (UPSC) conducts the Civil Services Examination (CSE) annually to recruit officers for prestigious services such as IAS, IPS, IFS, IRS, and others. The UPSC syllabus is divided into three main stages: Preliminary, Mains, and Personality Test (Interview). Understanding the syllabus in detail is essential for effective preparation and success in the exam.

Stage 1: UPSC Prelims Syllabus (Objective Type)

The Preliminary Examination consists of two papers-both are objective (MCQ type) and are conducted on the same day.

1. General Studies Paper I (GS Paper 1)

• Current events of national and international importance
• History of India and Indian National Movement
• Indian and World Geography - Physical, Social, Economic Geography
• Indian Polity and Governance - Constitution, Political System, Panchayati Raj, Rights Issues
• Economic and Social Development - Sustainable Development, Poverty, Inclusion, Demographics
• Environmental Ecology, Biodiversity and Climate Change
• General Science

Duration: 2 Hours

Marks: 200

Negative Marking: Yes (1/3rd)

Note: Marks are counted for Prelims cutoff.

2. CSAT - General Studies Paper II (Qualifying)

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

Duration: 2 Hours

Marks: 200

Minimum 33% needed to qualify

Stage 2: UPSC Mains Syllabus (Descriptive Type)

The Mains exam consists of 9 papers. Two are qualifying in nature, while seven are considered for merit.

Qualifying Papers

• Paper A: Indian Language (selected from the 8th Schedule)
• Paper B: English Language

Papers Counted for Merit

• Essay (Paper I) - Candidates may be required to write essays on multiple topics.
• General Studies I (Paper II) - Indian Heritage and Culture, History and Geography of the World and Society
• General Studies II (Paper III) - Governance, Constitution, Polity, Social Justice, International Relations
• General Studies III (Paper IV) - Technology, Economic Development, Biodiversity, Environment, Security, Disaster Management
• General Studies IV (Paper V) - Ethics, Integrity, and Aptitude
• Optional Subject Paper I (Paper VI)
• Optional Subject Paper II (Paper VII)

Each paper carries 250 marks. Total for merit = 1750 marks

Stage 3: UPSC Interview / Personality Test

• Conducted by UPSC board after qualifying Mains
• No syllabus prescribed - assessed on overall personality, mental alertness, social traits, interest in current affairs, and ethical integrity

Marks: 275

Final Selection & Cutoff

The final merit list is prepared based on:

• Mains Exam (1750 marks)
• Interview (275 marks)
• Total = 2025 Marks

Optional Subjects List (Choose One for Mains)

Some popular options:

• Public Administration
• Geography
• Sociology
• Political Science
• Anthropology
• History
• Psychology
• Literature (Hindi, English, and regional languages)

Download UPSC Syllabus PDF

You can download the official UPSC syllabus PDF on Careerindia

Key Tips to Use the UPSC Syllabus Effectively

• Align your preparation strictly with the syllabus topics
• Break down GS papers into subtopics and make a study plan
• Refer to previous year papers to understand trends
• Keep updating your preparation with current affairs

Conclusion

The UPSC Civil Services syllabus is vast yet well-defined, making it crucial for aspirants to thoroughly understand each component of the Prelims, Mains, and Interview stages. Success in the exam depends not only on hard work but also on smart planning and consistent revision based on the syllabus. By aligning your preparation with the official topics and prioritizing both static subjects and current affairs, you can improve your chances of clearing each stage. Always refer to authentic resources, solve previous year question papers, and track progress with the syllabus as your guide. A clear grasp of the syllabus is the first and most important step towards becoming an IAS officer.