UPSC Prelims Answer Keys Year Wise PDF (2016–2026)- Download Prelims 2026 Provisional Answer Key (Available After Examination)

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:

• General Studies Paper 1 (GS Paper 1)
• Civil Services Aptitude Test (CSAT / GS Paper 2)

Practicing previous year answer keys along with question papers helps candidates understand:

• Exam difficulty level
• Question framing style
• Elimination techniques
• Subject-wise weightage
• Time management strategy

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 Answer Key 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:

• Calculate expected scores
• Analyze performance
• Predict qualifying chances
• Prepare for UPSC Mains early

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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.

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UPSC Prelims Answer Key 2025 PDF Download 

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. 

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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 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 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:

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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:

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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:

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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:

Steps to Download UPSC Prelims Answer Keys PDFs

Candidates can follow these steps to download answer keys:

1. Visit the official UPSC website
2. Open the “Examinations” section
3. Click on “Answer Keys”
4. Select the relevant Civil Services Examination year
5. Download GS Paper 1 and CSAT answer key PDFs

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