UPSC Exam Pattern, Explained Simply
The Civil Services Examination (CSE) picks officers for the IAS, IPS, IFS and other central services. Here is the whole exam, from eligibility to final selection, in plain language.
The exam in one view
You clear three stages in a row. Failing a stage means you wait for the next year's cycle. The exam is held once a year.
Which services does it fill?
All India Services (IAS, IPS, IFS) and Central Services Group A and B, such as IRS, IFS (Foreign), IRTS and others. Your rank and preference decide which service you get.
Who can apply?
| Criteria | Rule |
|---|---|
| Nationality | Indian citizen for IAS, IPS and most services. Some services allow certain other categories. |
| Education | A bachelor's degree in any stream from a recognised university. Final-year students can apply, subject to producing proof later. |
| Age (General) | 21 to 32 years |
| Age relaxation | OBC: up to 35 years. SC/ST: up to 37 years. Further relaxation applies for some other categories such as persons with benchmark disabilities. |
| Attempts | General: 6. OBC: 9. SC/ST: no limit until the age limit. Appearing in even one Prelims paper counts as an attempt. |
Rules can be revised in the yearly notification. Always confirm on upsc.gov.in.
Stage 1: Preliminary exam
A screening round. Thousands of candidates compete, and only about 12 to 13 times the number of vacancies qualify for Mains, based on a cut-off score.
| Paper | Questions | Marks | Time | Counts for cut-off? |
|---|---|---|---|---|
| General Studies Paper I | 100 | 200 | 2 hours | Yes |
| CSAT (General Studies Paper II) | 80 | 200 | 2 hours | No, only qualifying (33% = about 66 marks) |
What is tested
- GS Paper I: current events, history of India and the freedom struggle, geography, polity and governance, economy and social development, environment and ecology, general science.
- CSAT: reading comprehension, logical reasoning, basic numeracy and data interpretation (Class 10 level), decision making, interpersonal skills.
Key point: Prelims marks are used only to shortlist for Mains. They do not add to your final rank.
Stage 2: Main exam
A written exam with 9 papers, each of 3 hours, held over about 5 days. Answers are descriptive. You can write in English or any language from the Eighth Schedule of the Constitution (for the language papers, in the chosen language).
| Paper | Subject | Marks | Counts in ranking? |
|---|---|---|---|
| A | Compulsory Indian language | 300 | No, qualifying (25% needed) |
| B | English | 300 | No, qualifying (25% needed) |
| I | Essay | 250 | Yes |
| II | General Studies I | 250 | Yes |
| III | General Studies II | 250 | Yes |
| IV | General Studies III | 250 | Yes |
| V | General Studies IV | 250 | Yes |
| VI | Optional Subject, Paper 1 | 250 | Yes |
| VII | Optional Subject, Paper 2 | 250 | Yes |
| Total counted for merit | 1750 | ||
Papers A and B must be cleared for your other papers to be evaluated, but their marks are not added to the total.
What each General Studies paper covers
- GS I: Indian heritage and culture, modern Indian and world history, Indian society, geography.
- GS II: Constitution, polity, governance, social justice, international relations.
- GS III: Economy, agriculture, science and technology, environment, disaster management, internal security.
- GS IV: Ethics, integrity and aptitude, including case studies.
Optional subject
You choose one subject from a list of about 48 (such as History, Geography, Sociology, Public Administration, or a language literature). It has two papers and is your chance to specialise.
Stage 3: Interview (Personality Test)
- Marks: 275.
- Held in: New Delhi, before a board of senior members led by a UPSC member.
- Purpose: to judge you as a future officer, not to test textbook knowledge.
- Topics: your background and Detailed Application Form (DAF), hobbies, current issues, your home state, and situation-based questions.
- Qualities assessed: clarity of thought, mental alertness, balanced judgement, honesty, leadership and social awareness.
How the final rank is decided
| Component | Marks |
|---|---|
| Mains (counted papers) | 1750 |
| Interview | 275 |
| Total | 2025 |
Candidates are ranked by this total. Based on rank, category and the preferences you filled in, the service and cadre are allotted. After selection, officers undergo training, for IAS at the Lal Bahadur Shastri National Academy of Administration, Mussoorie.
Quick answers
Can I give UPSC while working or in the final year of college?
Yes. Final-year students may apply, and there is no restriction on working candidates, as long as eligibility conditions are met.
Do I need coaching?
No rule requires it. Many candidates prepare with self-study, previous year questions, standard books and regular practice tests.
How important are previous year questions (PYQs)?
Very. They show the type of questions, the depth expected and which topics repeat, which helps you plan what to read and what to skip.
Does the syllabus include current affairs?
Yes. Current events feature in Prelims and Mains, so daily reading linked to the static syllabus is important.
Start practising today
Solve UPSC PYQs, read daily current affairs and attempt practice questions on PadhLona.
Go to padhlona.comThis page is a simplified guide. Exam rules, dates and vacancies change by year, so always verify with the official notification at upsc.gov.in.