UPSC Prelims Answer Key 2025 Out: Download PDF

UPSC Prelims 2025 Answer Key: The UPSC Civil Services Preliminary Examination 2025 was held on 25th May 2025. This crucial exam is the gateway for thousands of aspirants aiming to join prestigious services such as IAS, IPS, IFS, and other Group A & B services. Understanding the question paper pattern, difficulty level, and key topics is vital for effective preparation, both for current aspirants and those targeting future exams.

In this article, you will find the official UPSC Prelims Answer Key 2025 PDFs for both General Studies (GS) Paper 1 and CSAT (Paper 2), along with detailed analysis and preparation tips.

UPSC Prelims 2025 Answer Key

The UPSC Prelims 2025 Answer Key was published by well-known coaching centers immediately after the exam was conducted on 25th May 2025. It includes full solutions for the General Studies Paper 1, which helps the aspirants verify their performance and estimate their marks. The answer key is published in the PDF format for sets A, B, C, and D. The aspirants can download it to verify their chances of clearing the UPSC Mains 2025.

UPSC Prelims Answer Key 2025 with Detailed Explanation

UPSC Prelims 2025 Answer Key PDF for All Set A, B, C, D

Students who have completed the UPSC Prelims 2025 exam can now download the unofficial answer keys in PDF format for All Set A, B, C, D and see how well they performed in the exam. The answer key includes in-depth solutions for GS Paper 1 as well as the CSAT, where aspirants can estimate their score and review their chances of qualifying for the Mains exam. It is a good practice to review the solutions to see any trends in the questioning for future strategy. If you would like to download the UPSC Prelims 2025 Answer Key PDF, please click the link given below:

UPSC Prelims Answer Key 2025 – Marking Scheme Explained

To estimate their scores accurately, candidates can refer to the UPSC Prelims Answer Key 2025, whether official or unofficial, along with the marking scheme set by the Union Public Service Commission. The Prelims exam consists of two papers—General Studies Paper 1 (GS-I) and CSAT Paper 2 (GS-II)—carrying a combined total of 400 marks.

Using the answer key in conjunction with the marking scheme helps aspirants calculate their expected scores and get a sense of their performance in the exam.

UPSC Prelims 2025 Answer Key: Subject-wise Question Distribution

The UPSC Prelims Answer Key 2025 gives candidates a clear idea of how they performed across different subjects. This year’s paper had a balanced mix of questions—Economy (20), Polity (14), History & Culture (16), Environment and Science & Tech (13 each), Geography (12), International Relations (6), and Miscellaneous (6). With 100 questions in total, the answer key helps aspirants identify strong areas and topics that may need more attention in future preparation, boosting their strategy for upcoming exam stages.

UPSC Prelims 2025: Nature of Questions

The UPSC Prelims 2025 Answer Key provides valuable insights into the types of questions asked in this year’s exam. The General Studies Paper 1 featured a diverse mix, including 18 single-option questions, 15 two-statement, 39 three-statement, and 9 four-statement questions. Additionally, there were 4 questions with five or more statements, 7 assertion-reasoning, and 8 matching-type questions. This variety reflects UPSC’s focus on analytical thinking and conceptual clarity. By reviewing the UPSC Prelims Answer Key 2025, aspirants can assess their performance across different formats and refine their preparation strategy for future stages, including the UPSC Mains examination.

Expected Cut-Off for UPSC Prelims 2025

According to this year‘s paper difficulty and student response, cut-off marks for the General Category can be anticipated in the range of 85–90. The paper of CSAT was of moderate difficulty, particularly the comprehension and reasoning part.

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