UPSC CSE Prelims 2026 Answer Key 2026 Out; Download Paper 1 & 2 Solutions

Q: Ques: Can candidates challenge the UPSC Prelims answer key?

Ans: No, UPSC does not provide a facility to challenge the answer key for Prelims.

Q: Ques: How to calculate expected scores using the UPSC prelims answer key?

Ans: Match your answers with the answer key, awarding +2 marks for each correct answer and deducting ? mark (–0.66) for every incorrect response. CSAT is qualifying, so only accuracy matters there.

Q: Ques: Can the prelims answer key affect the final result declaration?

Ans: No. The final result is declared by UPSC after official evaluation. Answer keys are for candidates’ self-assessment and do not affect official results.

Q: Ques: Where can I find detailed solutions along with UPSC CSE prelims answer key?

Ans: You can find detailed solutions along with UPSC CSE prelims answer key on Prepp.in.

Q: Ques: What happens after clearing UPSC CSE Prelims 2025? What is the next stage?

Ans: After clearing UPSC CSE Prelims 2025, candidates become eligible to appear for the UPSC Mains exam. The Mains consist of nine papers testing in-depth knowledge and writing skills. Successful candidates in Mains then proceed to the final stage—Personality Test (Interview).

Soumya Rajput

May 27, 2026

What's New in IAS Exam?

May 27, 2026: Union Public Service Commission has officially released UPSC CSE Prelims 2026 Answer Key for both GS Paper 1 and CSAT Paper 2 on May 27, 2026. Download PDF

Union Public Service Commission conducted UPSC Civil Services Exam (CSE) Prelims 2026 on May 24, 2026, in two shifts across various examination centres in India. The prelims exam consisted of General Studies (GS Paper 1) and CSAT (Paper 2). The official UPSC Prelims Answer Key 2026 for both papers is released on May 27, 2026, on the official UPSC website, allowing candidates to evaluate their performance and estimate their scores.

UPSC CSE Prelims 2026 Answer Key PDF

Paper	Answer Key PDF
UPSC Prelims 2026 Paper 1 (General Studies)	Download PDF
UPSC Prelims 2026 Paper 2 (CSAT)	Download PDF

UPSC CSE 2026 Answer Key Download Link

UPSC CSE 2026 Answer Key for the Prelims Exam has been officially released by Union Public Service Commission after the successful conduct of the exam. Candidates can now use the official answer key to evaluate their performance and estimate their scores in both General Studies Paper 1 and CSAT Paper 2. Along with the official key, several coaching institutes have also published unofficial answer keys and detailed solutions for candidate reference.

Candidates can download UPSC CSE 2026 Prelims answer key PDF set-wise (GS Paper I & CSAT) for reference and performance analysis. Using the answer key, aspirants can calculate their expected marks and assess their chances of qualifying for the Mains exam.

Download UPSC CSE 2026 Answer Key (Link Active)

How to Download UPSC IAS Answer Key 2026?

Candidates can follow the steps below to download UPSC IAS Prelims Answer Key 2026 once it is released:

Step 1: Visit the official UPSC website at upsc.gov.in.
Step 2: Go to the ‘Examinations’ section and click on ‘Answer Keys’.
Step 3: Look for the link titled “Civil Services (Preliminary) Examination 2026 – Answer Key” and click on it.
Step 4: The answer key PDF for GS Paper 1 and GS Paper 2 will open on the screen.
Step 5: Download the PDF file to your device.
Step 6: Take a printout for evaluating your responses and estimating your expected score.

How to Calculate UPSC CSE 2026 Prelims Marks?

Candidates can estimate their UPSC CSE 2026 Prelims score by following the steps below once the answer key is available:

Download the question paper and answer key (official or reputed institute) for GS Paper I and CSAT (Paper II).
Compare your marked responses with the answer key carefully.
Count the number of correct and incorrect answers separately.
For GS Paper I:
- Add 2 marks for each correct answer.
- Deduct 0.66 marks (1/3rd negative marking) for each wrong answer.
For CSAT, calculate marks similarly, but remember it is qualifying in nature (minimum 33%).
Add the final marks of GS Paper I to estimate your score out of 200 marks.

This calculation helps candidates assess their chances of clearing the UPSC CSE 2026 Prelims cut-off.

Check IAS 2025 Prelims Question Paper: GS Paper 1 and CSAT Paper 2 PDF

UPSC Prelims 2025 Answer Key with Solution PDF

Question Paper	Answer Key PDF	Solution
UPSC GS Prelims Paper 1 Question Paper 2025 PDF	Download PDF	Check Solution
UPSC CSAT Prelims Paper 2 Question Paper 2025 PDF	Download PDF	Check Solution

UPSC IAS Prelims Answer Key 2026 will help candidates assess their performance and estimate their probable scores before the official results are released. UPSC will release the result shortly after the publishing of the answer key. Candidates who qualify UPSC IAS Prelims will move on to the mains round.

Relevant Links
UPSC IAS Previous Year Papers	IAS Question Paper 2025	IAS Mock Test
UPSC IAS Prelims Question Paper	UPSC IAS Question Paper 2024	UPSC IAS Question Paper 2023

UPSC IAS Answer Key 2025 FAQs

Ques: Can candidates challenge the UPSC Prelims answer key?

Ans: No, UPSC does not provide a facility to challenge the answer key for Prelims.

Ques: How to calculate expected scores using the UPSC prelims answer key?

Ans: Match your answers with the answer key, awarding +2 marks for each correct answer and deducting ? mark (–0.66) for every incorrect response. CSAT is qualifying, so only accuracy matters there.

Ques: Can the prelims answer key affect the final result declaration?

Ans: No. The final result is declared by UPSC after official evaluation. Answer keys are for candidates’ self-assessment and do not affect official results.

Ques: Where can I find detailed solutions along with UPSC CSE prelims answer key?

Ans: You can find detailed solutions along with UPSC CSE prelims answer key on Prepp.in.

Ques: What happens after clearing UPSC CSE Prelims 2025? What is the next stage?

Ans: After clearing UPSC CSE Prelims 2025, candidates become eligible to appear for the UPSC Mains exam. The Mains consist of nine papers testing in-depth knowledge and writing skills. Successful candidates in Mains then proceed to the final stage—Personality Test (Interview).