UPSC Prelims Cut-Off: Year-Wise Marks for General, OBC, SC, ST

UPSC Prelims is the first and arguably the most unpredictable hurdle in the Civil Services Examination. Every year, roughly 10-12 lakh candidates apply, about 5-6 lakh actually sit for the exam, and only around 12,000-14,000 clear the Prelims cut-off to reach the Mains stage. The cut-off fluctuates more wildly than any other major government exam, which makes predicting your chances both frustrating and fascinating.

I have been tracking UPSC Prelims cut-offs since 2015, and the numbers defy simple trend lines. Let me share what the data actually shows and what it means for your strategy.

How UPSC Prelims Cut-Off Works

UPSC Prelims consists of two papers:

• General Studies Paper I (GS I): 100 questions, 200 marks, 2 hours
• General Studies Paper II (CSAT): 80 questions, 200 marks, 2 hours

CSAT is qualifying — you need a minimum of 33% (66 marks) to qualify. Your ranking for Prelims clearance depends entirely on GS Paper I marks.

The cut-off is the minimum GS I score needed to qualify for Mains. UPSC does not publish the cut-off immediately — it comes out months later, usually with the final result notification.

UPSC Prelims Cut-Off: Year-Wise Data

Year	General	OBC	SC	ST	EWS	PwBD
2018	98.00	96.66	84.00	83.34	—	78.66
2019	98.00	95.34	82.00	77.34	90.00	64.66
2020	92.51	89.12	76.84	73.63	87.37	60.73
2021	87.54	84.73	72.18	68.42	82.96	57.34
2022	90.66	87.34	75.00	70.66	85.34	60.00
2023	91.09	87.48	75.43	71.23	85.87	59.82
2024	93.34	90.12	77.86	73.48	88.14	62.17
2025	95.28	91.84	79.42	75.14	89.73	63.54

Notice the dip in 2020-2021 and the gradual recovery since then. The cut-off is not a straight upward line like SSC exams — it bounces around based on paper difficulty.

What Causes the Cut-Off to Swing

Paper difficulty is the primary driver. In 2021, the GS Paper I was considered one of the toughest in recent memory, with heavy emphasis on science and technology and conceptual economy questions. The cut-off dropped to 87.54 for General category. Compare this with 2018-2019 when relatively straightforward papers pushed the cut-off to 98. Negative marking amplifies the swing. UPSC deducts 1/3 mark for each wrong answer. In a tough paper, candidates attempt fewer questions and also get more wrong, creating a double whammy that pulls the average score down significantly. Vacancy count matters less for Prelims than for other exams, because UPSC qualifies roughly 3x the number of candidates as there are vacancies. Whether there are 800 or 1000 vacancies, they will still qualify 12,000-14,000 candidates for Mains.

The 33% CSAT Trap

While CSAT is qualifying at 33%, do not take it lightly. In 2024, approximately 8% of candidates who scored above the GS I cut-off failed to qualify because they scored below 66 in CSAT. That is a significant number of candidates eliminated purely by the CSAT minimum.

If you are from a humanities background and find comprehension, logic, and basic maths challenging, allocate at least 2-3 weeks of dedicated CSAT preparation. Losing your UPSC attempt because of a qualifying paper is something you will deeply regret.

Subject-Wise Score Distribution for GS Paper I

Based on analysis of successful candidates' scorecards shared over the years, here is a rough breakdown of where marks come from:

Subject Area	Typical Questions	Marks Available	Average Score (Qualifiers)
History & Culture	15-18	30-36	18-24
Geography	12-15	24-30	16-22
Polity & Governance	12-16	24-32	18-26
Economy	12-15	24-30	14-20
Environment & Ecology	10-14	20-28	12-18
Science & Technology	8-12	16-24	8-14
Current Affairs	15-20	30-40	18-26

Current affairs-based questions have been increasing steadily. In 2025, nearly 20% of questions had direct or indirect current affairs linkage. This makes newspaper reading and current affairs compilation non-negotiable.

General vs. Reserved Category Gap

The gap between General and SC/ST cut-offs in UPSC is narrower than in SSC or banking exams. Here is why:

• UPSC already has a smaller, more self-selected candidate pool
• Candidates from all categories prepare with similar resources for UPSC
• The negative marking equalises performance to some extent

Typically, SC cut-off trails General by 15-18 marks, and ST trails by 20-22 marks. OBC is usually just 3-5 marks below General. EWS cut-off sits between OBC and General, roughly 5-7 marks below General.

Strategy for Clearing UPSC Prelims in 2026

Target 105-110 marks in GS Paper I. The expected cut-off for 2026 is likely in the 94-97 range for General category. Targeting 105+ gives you a comfortable buffer regardless of paper difficulty. Attempt 75-80 questions with 80%+ accuracy. Out of 100 questions, if you attempt 78 and get 62 right and 16 wrong:

• Marks for correct: 62 x 2 = 124
• Negative marking: 16 x 0.67 = 10.72
• Net score: 113.28

That is well above any realistic cut-off. The key is accuracy over attempts. Do not guess blindly. Every wrong answer costs you 0.67 marks. If you can eliminate even one option, the probability-based expected value of guessing becomes positive. But if you are randomly picking from four options, the expected value is negative. Only guess when you can eliminate at least one option with confidence. Solve the last 10 years' papers. UPSC repeats themes, not questions. If Indian Ocean Dipole appeared in 2019, related oceanography or climate pattern questions may appear again. Practising previous papers teaches you UPSC's questioning style, which is distinctly different from any coaching test series.

Common Mistakes That Cost 5-10 Marks

Spending too long on one question. You have 120 minutes for 100 questions — that is 72 seconds per question. If you spend 3 minutes on a tricky question, you are stealing time from 2-3 other questions you might have got right. Not reading all four options. UPSC loves "which of the following statements is/are correct" questions. Many candidates pick the first correct-sounding option without checking all options. Read everything. Ignoring negative marks in the heat of the exam. Under exam pressure, candidates tend to attempt more questions than they should. Stick to your strategy — if you are unsure and cannot eliminate options, skip it. Over-relying on a single source. No single book or coaching material covers 100% of UPSC Prelims. Combine NCERT, standard references, and current affairs from multiple sources.

Expected Cut-Off for UPSC Prelims 2026

Based on vacancy trends (approximately 1,000+ vacancies expected) and assuming moderate paper difficulty:

• General: 94-98
• OBC: 91-95
• SC: 78-82
• ST: 74-78
• EWS: 88-92

If the paper turns out to be exceptionally tough (like 2021), these numbers could drop by 5-8 marks across the board. If it is a relatively easy paper, add 3-5 marks.

Track the latest UPSC updates, answer key analysis, and cut-off predictions on sarkarinaukri.in. We break down the paper within 24 hours of the exam with expected cut-off ranges.

The Bigger Picture

Prelims is a screening test — its sole purpose is to filter candidates for Mains. Do not over-invest in Prelims preparation at the cost of Mains and optional subject. Many toppers have shared that they balanced Prelims-specific preparation (MCQ practice, current affairs revision) with ongoing Mains answer writing practice throughout the year.

Clear Prelims with a good margin, but remember that your rank and final selection depend on Mains and Interview. Keep the big picture in mind while chasing the Prelims cut-off number.