UPSC Prelims Answer Key 2025 PDF: Download GS Paper 1 & 2 Answer Keys

Download the unofficial UPSC Prelims Answer Key 2025 for GS Paper 1 and CSAT (Paper 2). Calculate your expected score for the prelims held on May 25, 2025—Shift 1: 9:30 AM–11:30 AM, Shift 2: 2:30 PM–4:30 PM.

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May 26, 2025

UPSC Prelims Answer Key 2025 PDF: Download GS Paper 1 & 2 Answer Keys

UPSC Prelims Answer Key 2025 helps aspirants to evaluate their answers. UPSC releases the official answer keys for both the prelims papers, General Studies Paper I and CSAT-General Studies Paper II. Both these papers will be in the form of MCQs. The answer keys can be downloaded from UPSC’s official website, upsc.gov.in/examinations/answer-key. Candidates can access the set-wise answer keys for both the General Studies and the CSAT Paper.

UPSC Prelims Answer Key 2025 PDF Download (Unofficial)

The Union Public Service Commission (UPSC) conducted the Civil Services (Preliminary) Examination on May 25, 2025. The UPSC CSE Preliminary Examination was held in two shifts, the first shift was from 9:30 AM to 11:30 AM, and the second shift was from 2:30 PM to 4:30 PM. The official UPSC Prelims Answer Key 2025 will be released by UPSC after the completion of the entire examination cycle of 2025, including the Mains and Interview stages. However, our PWOnlyIAS Academic Team provided the unofficial UPSC Prelims Answer Key 2025 PDFs for both GS Paper 1 and GS Paper 2 (CSAT).Below are the links to download the UPSC Prelims Answer Key 2025 PDFs (Unofficial).

UPSC Prelims Answer Key 2025 Link

UPSC Prelims Answer Key 2025 GS Paper 1 PDF Download Link
UPSC Prelims Answer Key 2025 GS Paper 2 (CSAT) PDF Download Link

Also Read: UPSC Prelims Answer Key 2025 With Solution

How to Download UPSC Prelims Answer Key 2025?

The Union Public Service Commission (UPSC) officially releases the Prelims answer keys on its website only after the completion of the entire examination cycle, including the declaration of final results. These answer keys are made available for both the General Studies (GS) and CSAT papers. Candidates can download the official answer keys by following the steps given below:

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

Step 2: On the top left corner of the page, click on the examination portal

Step 3: Click on the ‘Answer Key’ option

Step 4: Click on the ‘Civil Services (Preliminary) Examination’ link

Step 5: Click on the link for ‘GS Paper 1’ and ‘GS Paper 2’

Step 6: Locate your question paper set and match your answer keys

Also Read: UPSC Prelims Question Paper 2025

UPSC Prelims Answer Key Years-wise Download

The UPSC Prelims Answer Key is officially released by UPSC after the entire examination cycle, including the final results, is complete. While it may not benefit candidates who have already taken the exam, it is extremely useful for those preparing for the upcoming attempt. By comparing the official answer key, aspirants can understand how answers to tricky or disputed questions are decided. This helps improve accuracy and build a better question-solving approach for future exams. Below, you can find year-wise answer keys for General Studies (GS) and CSAT papers to aid your preparation.

Download UPSC Prelims PYQs

UPSC Prelims Answer Key Year-wise

Year of Examination General Studies Paper CSAT Paper
2025 Download Now Download Now
2024 Download Now Download Now
2023 Download Now Download Now
2022 Download Now Download Now
2021 Download Now Download Now
2020 Download Now Download Now
2019 Download Now Download Now
2018 Download Now Download Now
2017 Download Now Download Now

Check Out UPSC CSE Books From PW Store

UPSC Prelims Answer Key 2024 official Out

The UPSC Prelims Exam 2024 was conducted on 16th June 2024. The results of the Prelims Exam were declared on 1st July 2024. The UPSC Prelims Answer Key 2024 was updated by the Union Public Service Commission (UPSC) on 21st May 2025. The answer keys for both papers can be downloaded from the table below:

UPSC Prelims Answer Key 2024 All Sets
General Studies (Paper 1) Download from Here
CSAT (Paper II) Download from Here

UPSC Prelims Answer Key 2023

UPSC prelims exam 2023 was conducted on May 28, 2023. On June 12, 2023, the results of the prelims exam were declared. The answer key for both papers can be downloaded from the table below:

UPSC Prelims Answer Key 2023 All Sets
General Studies (Paper 1) Download from Here
CSAT (Paper II) Download from Here

UPSC Prelims Answer Key 2022

UPSC conducted the prelims examination on June 5, 2022. The answer key was released in May 2023, after the declaration of the final result. The final answer key can be downloaded from links below:

UPSC Prelims Answer Key 2022 All Sets
General Studies (Paper 1) Download from Here
CSAT (Paper II) Download from Here

UPSC Prelims Answer Key 2021

UPSC prelims exam 2021 was conducted on October 10th, 2021. The final answer key for all the sets can be downloaded from the links below:

UPSC Prelims Answer Key 2021 All Sets
General Studies (Paper 1) Download from Here
CSAT (Paper II) Download from Here

UPSC Prelims Answer Key 2020

UPSC prelims 2020 was held on October 4th, 2020. The final answer key for all the question paper sets can be downloaded from links given below:

UPSC Prelims Answer Key 2020 All Sets
General Studies (Paper 1) Download from Here
CSAT (Paper II) Download from Here

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UPSC Prelims Answer Key 2019

UPSC conducted prelims 2019 on June 2nd 2019. The links to download answer keys of both the papers can be found below:

UPSC Prelims Answer Key 2019 All Sets

General Studies (Paper 1) Download from Here
CSAT (Paper II) Download from Here

UPSC Prelims Answer Key 2025 PDFs FAQs

The UPSC Prelims 2025 was held on May 25, 2025, in two shifts: 9:30 AM–11:30 AM and 2:30 PM–4:30 PM.

The unofficial UPSC Prelims Answer Key 2025 for both GS Paper 1 and CSAT is provided by PWOnlyIAS and can be downloaded from this page.

UPSC usually releases the official answer key of prelims exam after announcement of the final result.

PWOnlyIAS academic team prepares the unofficial answer keys with great care and subject-matter expertise. While not official, they are a reliable reference for self-evaluation.

UPSC accepts objections from candidates regarding the official answer key. However, the process has no meaning as the complete examination procedure will already be completed.

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Quick Revise Now !
AVAILABLE FOR DOWNLOAD SOON
UDAAN PRELIMS WALLAH
Comprehensive coverage with a concise format
Integration of PYQ within the booklet
Designed as per recent trends of Prelims questions
हिंदी में भी उपलब्ध
Quick Revise Now !
UDAAN PRELIMS WALLAH
Comprehensive coverage with a concise format
Integration of PYQ within the booklet
Designed as per recent trends of Prelims questions
हिंदी में भी उपलब्ध

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