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Download UPSC Prelims Answer Key Year Wise PDFs (2016–2026) for GS Paper 1 and CSAT. Access the provisional UPSC Prelims 2026 answer key after the exam, along with official set-wise answer keys to analyse performance, estimate scores, and understand answer patterns.
The UPSC Prelims Answer Keys Year Wise PDFs are highly useful resources for candidates preparing for the Civil Services Examination conducted by the Union Public Service Commission. These answer keys help aspirants evaluate previous year papers, understand UPSC’s answer patterns, and improve accuracy in solving objective questions.
The UPSC Prelims examination consists of:
Practicing previous year answer keys along with question papers helps candidates understand:
UPSC usually releases the official answer keys after completion of the examination cycle. However, unofficial answer keys are often released immediately after the exam by coaching institutes for provisional analysis.
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UPSC Prelims 2026 Related Topics |
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| UPSC Prelims Question Paper 2026 | UPSC Prelims Answer Key Year 2026 With Solution PDF (Hindi & English) |
| UPSC Answer Key Years Wise | UPSC Question Paper PDF Download |
| Download UPSC Question Papers (Prelims & Mains PDF) | UPSC Prelims Previous Year Papers |
| CSAT Previous Year Question Papers | UPSC Prelims Exam Analysis 2026 |
UPSC Prelims Provisional Answer Key 2026 helps aspirants to evaluate their answers. UPSC will release the official answer keys for both the prelims papers, General Studies Paper I and CSAT-General Studies Paper II after the exam by UPSC. 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.
The UPSC Prelims Answer Key 2026 (Provisional) will be released after the Civil Services Preliminary Examination conducted on 24 May 2026. Reports suggest UPSC may introduce faster provisional answer key access under its new reform measures.
Candidates can use the answer key to:
| GS Paper 1 | PDF Link Available Soon |
| GS Paper 2 – CSAT | PDF Link Available Soon |
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.
UPSC Prelims Answer Key Year-wise
Year of Examination
General Studies Paper
CSAT Paper
2025
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2024
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2023
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2022
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2021
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2020
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2019
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2018
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2017
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Check Out UPSC CSE Books From PW Store
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 was released by UPSC after the completion of the entire examination cycle of 2025, including the Mains and Interview stages.
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
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:
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UPSC Prelims Answer Key 2024 All Sets |
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| General Studies (Paper 1) | Download from Here |
| CSAT (Paper II) | Download from Here |
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 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 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 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 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
Candidates can follow these steps to download answer keys:
Official UPSC Website:
UPSC Official Website
Check Out UPSC CSE Books
Visit PW Store
Candidates can download the PDFs from the official UPSC website or trusted educational portals.
Yes, UPSC releases answer keys for both GS Paper 1 and CSAT.
They help candidates understand exam trends, improve accuracy, and strengthen preparation strategy.
Recent years’ answer keys, especially from 2020 onwards, are highly useful because they reflect the latest UPSC exam pattern.
Traditionally, UPSC released answer keys after the recruitment cycle, but recent reforms suggest provisional answer keys may now be released earlier.
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