UPSC Exam Pattern 2025: Prelims, Mains & Interview

UPSC Prelims has two papers: GS Paper I — 100 objective questions, 200 marks, 2 hours, 1/3 negative marking for each wrong answer; CSAT (Paper II) — 80 objective questions, 200 marks, 2 hours, 1/3 negative marking, qualifying at 33% (66.67 marks). Only GS Paper I marks are counted to shortlist candidates for Mains. Candidates who score below 66.67 in CSAT are disqualified regardless of GS Paper I score.

Yes. UPSC Prelims has 1/3 negative marking in both papers. For every wrong answer in GS Paper I (2 marks per question), 0.66 marks are deducted. For every wrong answer in CSAT (2.5 marks per question), 0.83 marks are deducted. Unattempted questions carry no penalty. This makes strategic question selection crucial — unlike JPSC which has no negative marking.

UPSC Mains has 9 written papers: Paper A (Indian Language, 300 marks, qualifying), Paper B (English, 300 marks, qualifying), Essay (250 marks), GS I to GS IV (250 marks each = 1000 marks), Optional Paper I (250 marks), Optional Paper II (250 marks). Merit marks = Essay + GS I-IV + Optional I & II = 1750 marks. All Mains papers are 3-hour descriptive papers.

UPSC Personality Test (Interview) carries 275 marks. It is conducted by a board of UPSC members. The interview assesses: intellectual curiosity, critical powers of assimilation, balance of judgement, variety and depth of interest, mental and social traits, integrity of character, leadership and social qualities, and aptitude for public service. No fixed question pattern — the board reviews your DAF (Detailed Application Form) and asks questions based on your background, hobbies, optional subject, and current events.

UPSC total marks for final selection: Mains 1750 marks + Interview 275 marks = 2025 marks. The qualifying papers (Language Paper A, Language Paper B, and CSAT) are not counted in this total. Prelims GS Paper I marks are also not counted — Prelims is purely a screening test.

Approximately 10-13 times the total vacancies are shortlisted for Mains from Prelims. If there are 1000 vacancies, about 10,000-13,000 candidates clear Prelims. The cut-off varies each year based on difficulty. Typically, 5-10 lakh candidates appear for Prelims and about 15,000 clear it.

All 9 UPSC Mains papers are 3-hour papers (180 minutes). The Essay paper requires writing two essays of 1000-1200 words each within 3 hours. GS Papers and Optional Papers require answering multiple questions with varying word limits (150 words, 250 words) within 3 hours. Time management is critical for Mains success.

Key differences: 1) UPSC Prelims has 1/3 negative marking; JPSC Prelims has NO negative marking. 2) UPSC Mains is 9 papers (1750 marks + 275 interview = 2025 total); JPSC Mains is 6 papers (800 marks merit + 100 interview = 900 total). 3) UPSC has Optional subjects (500 marks); JPSC has no optional subject. 4) UPSC CSAT is qualifying at 33%; JPSC Paper II (Jharkhand GK) is qualifying at 40%. 5) UPSC interview is 275 marks; JPSC interview is 100 marks.