UPSC IAS Prelims Answer Key PDF (2014-2025)
The Union Public Service Commission (UPSC) Civil Services Preliminary Examination is one of the most prestigious and competitive exams in India, conducted annually to select candidates for the IAS, IPS, IFS, and other central services. UPSC IAS preliminary exam consists of two papers: General Studies (GS) Paper 1 and the Civil Services Aptitude Test (CSAT) Paper 2. The UPSC Prelims Answer Key is an essential resource for Civil Services aspirants preparing for the UPSC CSE (Civil Services Examination). After the exam, candidates eagerly await the Official UPSC Prelims Answer Key PDF to evaluate their performance and estimate their scores.
The Official UPSC Prelims Answer Key PDF helps aspirants cross-verify their responses with the correct answers, identify weak areas, and refine their preparation strategy. The Union Public Service Commission (UPSC) releases the official answer key only after the final results are declared. Typically, it is made available on the UPSC website (upsc.gov.in) along with candidates’ response sheets. While UPSC releases the official answer key only after the final result declaration, various coaching institutes and experts provide unofficial answer keys shortly after the exam.
UPSC IAS Prelims answer key 2025 – GS Paper 1 & CSAT Paper 2
This article provides a detailed insight into the UPSC CSE Prelims answer key 2025 for GS Paper 1 and CSAT Paper 2. The UPSC Civil Services Preliminary Examination 2025 was conducted on May 25, 2025, with CSAT (Paper 2) being a crucial qualifying paper. While many aspirants focus primarily on General Studies (GS) Paper 1, the CSAT (Civil Services Aptitude Test) is decisive in determining eligibility for the Mains examination. Paper 1 (GS): Covers subjects like History, Polity, Geography, Economy, Environment, and Current Affairs. The CSAT is the second part of the UPSC Prelims 2025 Question Paper, comprising 80 questions for 200 marks. The UPSC CSAT is qualifying in nature, meaning that the marks obtained in this GS Paper 2 will not be considered in the final selection for the Mains. The CSAT paper tests comprehension, logical reasoning, analytical ability, and basic numeracy.
| UPSC CSE Prelims answer key 2025 (GS Paper 1) | Direct Download Link |
| GS Paper 1 Answer Key Set A | |
| GS Paper 1 Answer Key Set B | |
| GS Paper 1 Answer Key Set C | |
| GS Paper 1 Answer Key Set D | |
| UPSC Prelims answer key 2025 for CSAT (Paper-2) (Held On: 25th May, 2025) | Download PDF (Will upload soon) |
Last 10 Years UPSC Prelims Answer Key PDF 2014-2024
The UPSC IAS Preliminary stage comprises two objective-type papers: General Studies Paper 1 (GS Paper 1) and Civil Services Aptitude Test (CSAT or GS Paper 2). Once the exam is over, candidates are keen to evaluate their performance. This is where the UPSC Prelims Answer Key plays a crucial role. It helps aspirants estimate their scores and analyze their chances of clearing the cut-off. The UPSC officially releases the answer key after the entire examination process is completed, including the final results.
Key Features of the Official UPSC Prelims Answer Key PDF:
- Released on the UPSC official website (upsc.gov.in).
- Contains correct answers for all sets (A, B, C, D) of the question paper.
- Used for final answer key verification before result declaration.
UPSC Prelims Previous Year Question Papers with Answer Key are essential tools for aspirants preparing for the Civil Services Examination. Below is the year-wise list of UPSC Prelims Answer Key PDFs for GS Paper 1 and CSAT from 2014 to 2025. Here we have UPSC Prelims Previous Year Question Papers with Answer Key:
UPSC Prelims Answer Key – Marking Scheme
The aspirants can calculate their approximate marks in the Preliminary Exam with the help of the UPSC Answer Key 2025 as per the marking scheme decided by the Union Public Service Commission. UPSC CSE exam consists of 400 marks, scoring 2 marks each for the correct answer in Paper-1 & 2.5 marks in Paper-2. There will be a penalty of 1/3rda mark for each incorrect answer. The marking scheme is discussed below.
| Particulars | Paper 1 | Paper 2 |
| Correct Answer | +2 | +2.5 |
| Incorrect Answer | -0.66 | -0.83 |
| Unanswered | 0 | 0 |
| No. of Questions | 100 | 80 |
| Total Marks | 200 | 200 |
The UPSC Prelims Answer Key PDF (2014-2025) is an invaluable tool for UPSC CSE aspirants. By analyzing GS Paper 1 and CSAT answer keys, candidates can improve accuracy, avoid mistakes, and strategize better for future attempts. For UPSC 2025 aspirants, regularly practicing with previous years’ papers and answer keys will enhance confidence and performance. Stay updated with official UPSC notifications and rely on trusted sources for answer keys.
Best of luck for your UPSC CSE 2025 preparation!!!
How to download the official UPSC Answer Key?
The Union Public Service Commission (UPSC) releases the official answer key only after the final results are declared. Typically, it is made available on the UPSC website (upsc.gov.in) along with candidates’ response sheets. Key Features of UPSC’s Official Answer Key:
- Released after the Prelims results.
- Allows candidates to challenge discrepancies (if any).
- Considered the most accurate reference.
- Available for both GS Paper 1 and CSAT Paper 2.
To download the UPSC Prelims Answer Key, candidates can follow these steps:
- Visit the official website of the UPSC at upsc.gov.in.
- On the homepage, click on “Examination” and then on “Answer Keys”.
- Click on the link for the “Civil Service Preliminary Examination Answer Key”.
- The UPSC Answer Key will open in a new tab. Download the Answer Key in PDF format.
Note: The official answer keys for the Prelims exam will be out after the recruitment process is over for CSE exam.
Current Affairs PDF 2025 – Download eBooks
Try attempt Daily Current Affairs 2025 Quizzes on the latest current affairs questions and answers. This Daily Current Affairs 2025 resource yields the facts about the events of International Current affairs, National, Sports, Business, Banking Current Affairs 2025, and more, which are Important for competitive exams as well as interviews.
