UPSC Civil Services Examination 2025: Full Syllabus & Exam Pattern
The UPSC Civil Services Examination (CSE) is one of the most competitive exams in India, conducted in three stages: Preliminary, Mains, and Personality Test (Interview). Understanding the full syllabus and exam pattern is the most important first step in any aspirant's preparation journey. Here is a complete, structured breakdown.
Stage 1: Preliminary Examination (Prelims)
The Prelims is a screening test consisting of two objective-type papers. Only the score of GS Paper-I is used for merit ranking; CSAT is qualifying.
GS Paper-I (200 Marks)
- Current Events of national and international importance
- History of India and Indian National Movement
- Indian and World Geography — Physical, Social, Economic
- Indian Polity and Governance — Constitution, Panchayati Raj, Public Policy
- Economic and Social Development — Sustainable Development, Poverty, Demographics
- General issues on Environmental Ecology, Bio-diversity and Climate Change
- General Science
CSAT Paper-II (200 Marks — Qualifying, 33% required)
- Reading 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
Stage 2: Mains Examination
The Mains consists of 9 papers, of which 7 are merit-based and 2 are qualifying language papers.
| Paper | Subject | Marks |
|---|---|---|
| Paper A | Indian Language (Qualifying) | 300 |
| Paper B | English (Qualifying) | 300 |
| Paper I | Essay | 250 |
| Paper II | General Studies I (History, Geography, Society) | 250 |
| Paper III | General Studies II (Polity, Governance, IR) | 250 |
| Paper IV | General Studies III (Economy, Environment, Security) | 250 |
| Paper V | General Studies IV (Ethics, Integrity, Aptitude) | 250 |
| Paper VI | Optional Subject — Paper 1 | 250 |
| Paper VII | Optional Subject — Paper 2 | 250 |
| Total Mains Marks (Merit-based) | 1750 | |
Stage 3: Personality Test (Interview)
- Marks: 275
- Conducted by a UPSC Board to assess the candidate's mental calibre, leadership potential, and suitability for civil service.
- The interview is NOT a test of knowledge — it evaluates critical thinking, communication, and balanced judgment.
Overall Marks Summary
- Mains (Written): 1750 marks
- Interview: 275 marks
- Grand Total: 2025 marks
Key Points About the Exam Pattern
- Prelims has negative marking: 1/3rd of marks deducted for each wrong answer.
- Mains papers are descriptive — answers must be written in your preferred language (English or chosen Indian language).
- Optional subjects: choose from a list of 48 subjects published by UPSC. The same optional is examined in two papers.
- The final merit list is based only on Mains + Interview marks (Prelims score is not counted).
A clear understanding of the syllabus prevents wasted effort and ensures targeted preparation. Use this guide alongside the official UPSC notification and previous year question papers for the best results.