UPSC Prelims Answer Key 2025 Out, Download Official PDF Link

Union Public Service Commission conducted the UPSC Prelims Exam 2025 on 25th May 2025 in nationwide exam centres. The official UPSC Prelims Answer Key 2025 is released at the official website of UPSC. The CSAT is qualifying in nature and candidates must secure at least 33% to be eligible for the General Studies Paper 1. The UPSC Prelims Answer Key 2025 has been shared below in the article. Candidates can use the answer key and official marking scheme to calculate your estimated score and check the correct answers.

UPSC Prelims Answer Key 2025

Analysing the UPSC Answer Key 2025 helps applicants to analyse the correct and incorrect responses, calculate the estimated marks. The official UPSC Answer Key 2025 has been uploaded on the official website on May 13, 2026. To download the UPSC Answer Key PDF candidates can check the instruction and direct link provided here.

UPSC Prelims Answer Key 2025 GS 1 PDF

Download the UPSC Prelims Answer Key 2025 for all sets of General Studies Paper 1 as released by UPSC for the reference of the candidates who appeared in UPSC Prelims Exam 2025 or planning to appear for upcoming exams.

Also Read: UPSC Prelims 2025 Result

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UPSC Prelims Answer Key 2025 CSAT PDF

The UPSC CSAT Paper 2025 held in the shift 2 between 02:30 PM to 04:30 PM and consist of 80 multiple-choice questions (MCQs). This paper is qualifying in nature, requiring candidates to secure a minimum of 33% marks to be eligible for the evaluation of GS Paper I.

To assist candidates in assessing their performance, the UPSC Prelims Answer Key 2025 has been provided below- CSAT for all sets: Set A, B, C, and D.

UPSC Provisional Answer Key 2026

The Union Public Service Commission has introduced a new reform by releasing the UPSC Civil Services Preliminary Examination 2026 Provisional Answer Key soon after the exam. This step has been taken to improve transparency and give candidates an early assessment of their performance. Candidates can also raise the objection for any discrepancies found along with the submission of relevant sources till May 31st, 2026 06:00 PM. The key highlights related to the UPSC Prelims Answer Key 2026 has been tabulated below:

UPSC Prelims Answer Key 2025 Marking Scheme

Aspirants can estimate their marks in the UPSC Prelims Answer Key 2025 using the official or unofficial answer keys and the marking scheme prescribed by the Union Public Service Commission (UPSC). The UPSC Prelims Exam 2025 comprise two papers, General Studies Paper 1 (GS-I) and CSAT Paper 2 (GS-II) with a total of 400 marks.

Steps to Download UPSC Prelims Answer Key 2025

Candidates who are appearing in the UPSC Exam 2025 can follow the below mentioned Steps to Download UPSC Prelims Answer Key 2025:

Step 1: Visit the official UPSC website at upsc.gov.in

Step 2: Navigate to the “Examinations” tab on the homepage.

Step 3: Click on “UPSC Answer Key 2025” from the dropdown menu.

Step 4: Find and click on the link for “UPSC Prelims Answer Key 2025”.

Step 5: The Steps to Download UPSC Prelims Answer Key 2025 PDF will open in a new tab, click Download to save it for reference.

Last 5 Years UPSC Answer Key PDF

Candidates preparing for UPSC Exam 2026, solving previous year’s question papers and reviewing them using the UPSC Prelims Answer Key is a proven strategy for success. It helps in evaluating performance, identifying mistakes, and understanding the trend and pattern of questions.