UPSC Prelims Answer Key & Question Paper 2021 for GS, CSAT Paper

UPSC Prelims 2021 Answer Key: Union Public Service Commission every year conducts a civil service examination for shortlisting eligible candidatures for prestigious Indian Administrative Services and the selection begins with the Prelims Exam followed by Mains & Interview. As UPSC Civil Service Prelims Exam is an objective type, therefore UPSC will be releasing the UPSC Prelims Answer Key 2021 officially for both papers and all sets. Stay alert with us, as we will be uploading the official UPSC Answer Key in this section. 

UPSC Prelims Result 2021 Out- Click to Check

UPSC Prelims 2021 Answer Key & Question Paper

As the UPSC Prelims Exam for Civil Services has been scheduled for 10th October 2021 and the UPSC Prelims Answer Key will be issued after the complete recruitment process is conducted. Career Power will release the unofficial UPSC Answer Key on the same day. We will be providing UPSC Prelims Question Paper as soon as the exam is over. Bookmark this page to get every latest update for UPSC Prelims Question Paper Answer Key 2021. 

UPSC Prelims Answer Key 2021

UPSC will issue Official UPSC Answer Key 2021 for Paper-I & II on its official website with the correct responses to the MCQ questions asked in the civil service exam. UPSC Prelims 2021 Answer Key will help the candidates to calculate their approximate marks to be scored in the exam. For more details about UPSC Prelims Question Paper Answer key 2021 refer to the below overview table. 

OrganisationUnion Public Service Commission
Name of ExamUPSC IAS Exam 2021
Total Number of ApplicantsMore than 11,00,000
UPSC Prelims Exam Date10th October 2021 (Sunday)
UPSC Answer Key Release Date (Unofficial)10th October 2021
UPSC Answer Key Release Date (Official)To be notified
Marking Scheme 

GS Paper I: 2 marks per question

GS Paper II: 2.5 marks per question

Negative Marking1/3rd of marks 
Official Website

UPSC Answer Key 2021 PDF 

UPSC CSE Answer Key 2021 will help the applicants to know their correct and incorrect responses and they can calculate the marks that they are going to score in the Prelims exam. The official UPSC Answer Key will be uploaded on the official website after the recruitment process is over. Till then, you can have a look at the unofficial UPSC Prelims Question Paper Answer Key prepared by our experts which has been updated below.

Click to Check UPSC Expected Cut Off  2021

UPSC Prelims Question Paper Answer Key for GS Paper

UPSC Prelims Question Paper Answer Key 2021 for GS Paper: Set A (1 to 50)
1- d11- c21- c31- c41- b
2- b12- a22- b32- a42- b
3- b13- b23- c33- a43- a
4- a14- c24- a34- b44- c
5- b15- b25- d35- a/d45- c
6- d16- a26- c36- c46- c
7- d17- c27- c37- d47- d
8- a18- c28- c38- a48- b
9- d19- b29- a39- c49- a
10- d20- c30- d40- d50- c
UPSC Prelims Question Paper Answer Key 2021 for GS Paper: Set A (51 to 100)
51- b61- a*71- a81- a91- b
52- b62- b72- c82- a92- b
53- a63- b73- d83- b93- b
54- d64- b74- b84- d94- d
55- b65- c75- d85- c95- d
56- b66- c76- d86- a96- d
57- a67- c77- c87- b97- d
58- c68- a78- a88- c98- c
59- d69- d79- c89- a99- d
60- d70- b80- a90- c100- d
UPSC Prelims Question Paper Answer Key 2021 for GS Paper: Set B
1- b21- c41- c61- a81- b
2- b22- a42- b62- a82- b
3- a23- b43- c63- b83- a
4- c24- c44- a64- d84- d
5- c25- b45- d65- c85- b
6- c26- a46- c66- a86- b
7- d27- c47- c67- b87- a
8- b28- c48- c68- c88- c
9- a29- b49- a69- a89- d
10- c30- c50- d70- c90- d
11- c31- d51- b71- a91- a
12- a32- b52- b72- b92- c
13- a33- b53- b73- b93- d
14- b34- a54- d74- b94- b
15- a/d35- b55- d75- c95- d
16- c36- d56- d76- c96- d
17- d37- d57- d77- c97- c
18- a38- a58- c78- a98- a
19- c39- d59- d79- d99- c
20- d40- d60- d80- b100- a
UPSC Prelims Question Paper Answer Key 2021 for GS Paper: Set C
1- b21- a41- b61- c81- c
2- b22- c42- b62- a82- a
3- b23- d43- a63- a83- b
4- d24- b44- d64- b84- c
5- d25- d45- b65- a/d85- b
6- d26- d46- b66- c86- a
7- d27- c47- a67- d87- c
8- c28- a48- c68- a88- c
9- d29- c49- d69- c89- b
10- d30- a50- d70- d90- c
11- a31- a*51- c71- c91- d
12- a32- b52- b72- b92- b
13- b33- b53- c73- c93- b
14- d34- b54- a74- a94- a
15- c35- c55- d75- d95- b
16- a36- c56- c76- c96- d
17- b37- c57- c77- c97- d
18- c38- a58- c78- c98- a
19- a39- d59- a79- a99- d
20- c40- b60- d80- d100- d
UPSC Prelims Question Paper Answer Key 2021 for GS Paper: Set D
1- a21- a41- b61- c81- b
2- c22- a42- b62- b82- b
3- d23- b43- b63- c83- a
4- b24- d44- d64- a84- c
5- d25- c45- d65- d85- c
6- d26- a46- d66- c86- c
7- c27- b47- d67- c87- d
8- a28- c48- c68- c88- b
9- c29- a49- d69- a89- a
10- a30- c50- d70- d90- c
11- a*31- b51- d71- c91- c
12- b32- b52- b72- a92- a
13- b33- a53- b73- b93- a
14- b34- d54- a74- c94- b
15- c35- b55- b75- b95- a/d
16- c36- b56- d76- a96- c
17- c37- a57- d77- c97- d
18- a38- c58- a78- c98- a
19- d39- d59- d79- b99- c
20- b40- d60- d80- c100- d

UPSC Answer Key 2021 for CSAt

This time the CSAT Paper was of Moderate level and it is mandatory for the candidates to score at least 33% marks in this exam to get qualified for Mains Exam. Check the UPSC CSAT 2021 Answer Key solved by our faculty from the below table- 

UPSC Prelims Question Paper Answer Key 2021 for CSAT Paper
1- c21- c41- c61- b
2- b22- a42- a62- c
3- a23- c43- b63- c
4- b24- c44- a64- a
5- d25- c45- b65- b
6- c26- b46- c66- b
7- a27- c47- b67- d
8- c28- b48- a68- a
9- a29- d49- d69- c
10- b30- b50- a70- b
11- a31- b51- b71- a
12- d32- c52- d72- c
13- c33- c53- a73- d
14- b34- b54- b74- a
15- c35- a55- d75- c
16- a36- b56- b76- b
17- c37- b57- c77- b
18- c38- d58- d78- a
19- c39- d59- 479- d
20- b40- d60- a80- c

UPSC Prelims 2021 Question Paper PDF 

The aspirants who are planning for the upcoming UPSC IAS Exam can download the UPSC Prelims Question Paper 2021 for their preparation from the below link. The Paper-1 General Studies, Question Paper PDF has been uploaded and Paper-2 for CSAT will be uploaded soon after the exam is over. 

Civil Service Preliminary ExamUPSC Question Paper PDF
General Studies (Paper-1)

Download Paper (English)

Download Paper (Hindi)

CSAT (Paper-2)Download Paper

Steps to Download UPSC 2021 Prelims Answer Key 

Candidates can download the official UPSC Answer Key 2021 by following the below-mentioned steps-

Step-1 Browse the official website of UPSC at  

Step-2 On the homepage, click on “Examination>>Answer Keys”.

Step-3 Click on the answer key link against “Civil Service Preliminary Examination Answer Key 2021-22”

Step-4 The UPSC Civil Service Preliminary Answer Key pdf is opened, download the pdf and compare your responses to those detailed in the answer key.

Check Elobrated UPSC IAS Syllabus and Exam Pattern 2021

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UPSC Prelims 2021 Answer Key- Marking Scheme

The aspirants can calculate their approximate marks in the UPSC Preliminary Exam 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 0.33 marks or 1/3rd marks for each incorrect answer. The marking scheme is discussed below.

Correct Answer+2+2.5
Incorrect Answer-0.33-0.33
No. of Questions10080
Total Marks200200

UPSC Prelims 2021 Cut Off 

The UPSC Civil Service cut-off marks will be released separately for Prelims, Mains & Final by the commission on the official website The candidates can have a look at the expected and previous year cut off marks to have an idea about this year UPSC Prelims 2021 Cut Off Marks. 

CategoryUPSC Cut Off (Expected)

Click to Check UPSC Cut Off Marks (Previous Year)

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UPSC Prelims Answer Key 2021: FAQs

Q. When will UPSC release the UPSC Prelims Answer Key 2021?

Ans. UPSC will release the official UPSC Answer Key after the recruitment process.

Q. Can I raise objections to the UPSC Prelims Question Paper Answer Key?

Ans. No, there is no option to raise objection/challenge the UPSC Prelims Question paper Answer Key 2021.

Q. Is there any negative marking for unanswered question in UPSC IAS Exam?

Ans. No, there is no marking for unanswered question.

Q. Will UPSC release answer for UPSC Mains Exam?

Ans. As UPSC Mains Exam is descriptive in nature, therefore no answer key will be released for Mains Exam.