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UPSC CSE Prelims 2021 Examination
UPSC Prelims 2021 Question Paper and Answer Key (GS Paper I): UPSC CSE Prelims 2021 was conducted today. The UPSC CSE Prelims examination was conducted in two shifts. In the first shift, the UPSC Prelims’ first paper (GS 1) was conducted between 9:30 to 11:30 AM. In the second shift, the second Paper (CSAT) of UPSC CSE Prelims 2021 has been conducted between 2:30 to 4:30. UPSC Prelims 2021 Question Paper and Answer Key are now being made available at UPSC Adda247. Those aspirants, who have not given the exam, or who are preparing for the next year, can download the UPSC Prelims 2021 Question Paper Now! Those aspirants, who have attempted the UPSC Prelims 2021 Exam, they can check the UPSC Prelims 2021 Answer Key given below, and with the help of Answer Key, they can evaluate their UPSC Prelims 2021 Score.
| Organization | Union Public Service Commission |
| Name of Exam | UPSC CSE Exam 2021 |
| Vacancies | 712 |
| Total Number of Applicants | More than 11,00,000 |
| UPSC Prelims Exam Date | 10th 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 Marking | 1/3rd of marks |
| Official Website | https://www.upsc.gov.in/ |
UPSC CSE Prelims 2021 Examination- GS Paper-1 Difficulty Level
UPSC Prelims 2021 Difficulty Level: The first reaction from the Aspirants who appeared in the UPSC Prelims 2021 shows that prelims 2021 GS Paper 1 was slightly difficult than last year. Questions from history and science and technology were on the difficult side of the spectrum while questions from the economy could easily be solved with better conceptual clarity.
We will shortly provide a detailed subject-wise analysis of the UPSC CSE Prelims 2021 Examination.
Here, we would like to tell you that the UPSC Prelims 2021 Cutoff is prepared based on the marks fetched by the aspirants in GS Paper 1. In the GS paper 2 (CSAT), candidates have to only secure minimum qualifying marks that are 1/3rd of the total (66.67 marks).
UPSC Prelims 2021 Expected Cutoff & Section-wise Analysis
UPSC CSE Prelims 2021 Examination- Detailed Answer Key
UPSC Prelims 2021 Answer Key: As promised, we are providing a detailed answer key for UPSC CSE Prelims 2021 GS Paper 1. The following UPSC CSE Prelims 2021 Examination GS Paper 1 answer key is of the ‘Set A’ of the GS Paper 1. Keep checking the page as we will update the UPSC Prelims 2021 Answer Key for all Sets – Set A, Set B, Set C and Set D.
GS Paper- 1 Answer Key: Set A |
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| 1- d | 21- c | 41- b | 61- c | 81- a |
| 2- b | 22- b | 42- b | 62- b | 82- b |
| 3- b | 23- c | 43- a | 63- b | 83- b |
| 4- a | 24- a | 44- c | 64- b | 84- d |
| 5- b | 25- d | 45- c | 65- c | 85- a |
| 6- d | 26- c | 46- c | 66- a | 86- a |
| 7- d | 27- c | 47- d | 67- b | 87- a |
| 8- a | 28- c | 48- b | 68- a* | 88- c |
| 9- d | 29- a | 49- a | 69- d | 89- a |
| 10- d | 30- d | 50- c | 70- b | 90- c |
| 11- c | 31- c | 51- b | 71- a | 91- b |
| 12- a | 32- a | 52- b | 72- c | 92- b |
| 13- b | 33- a | 53- a | 73- d | 93- b |
| 14- c | 34- b | 54- d | 74- b | 94- d |
| 15- b | 35- a/d | 55- b | 75- d | 95- d |
| 16- a | 36- c | 56- b | 76- d | 96- d |
| 17- c | 37- d | 57- a | 77- a | 97- d |
| 18- c | 38- a | 58- c | 78- b | 98- c |
| 19- b | 39- c | 59- d | 79- c | 99- b |
| 20- c | 40- d | 60- d | 80- b | 100- d |
Download GS Paper 1 PDF here in English
Download GS Paper 1 PDF here in Hindi
GS Paper- 1 Answer Key: Set B |
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| 1- b | 21- c | 41- c | 61- a | 81- b |
| 2- b | 22- a | 42- b | 62- b | 82- b |
| 3- a | 23- b | 43- c | 63- b | 83- a |
| 4- c | 24- c | 44- a | 64- d | 84- d |
| 5- c | 25- b | 45- d | 65- a | 85- b |
| 6- c | 26- a | 46- c | 66- a | 86- b |
| 7- d | 27- c | 47- c | 67- a | 87- a |
| 8- b | 28- c | 48- c | 68- c | 88- c |
| 9- a | 29- b | 49- a | 69- a | 89- d |
| 10- c | 30- c | 50- d | 70- c | 90- d |
| 11- c | 31- d | 51- b | 71- c | 91- a |
| 12- a | 32- b | 52- b | 72- b | 92- c |
| 13- a | 33- b | 53- b | 73- b | 93- d |
| 14- b | 34- a | 54- d | 74- b | 94- b |
| 15- a/d | 35- b | 55- d | 75- c | 95- d |
| 16- c | 36- d | 56- d | 76- a | 96- d |
| 17- d | 37- d | 57- d | 77- b | 97- a |
| 18- a | 38- a | 58- c | 78- a* | 98- b |
| 19- c | 39- d | 59- b | 79- | 99- c |
| 20- d | 40- d | 60- d | 80- b | 100- b |
GS Paper- 1 Answer Key: Set C |
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| 1- b | 21- a | 41- b | 61- c | 81- c |
| 2- b | 22- c | 42- b | 62- a | 82- a |
| 3- b | 23- d | 43- a | 63- a | 83- b |
| 4- d | 24- b | 44- d | 64- b | 84- c |
| 5- d | 25- d | 45- b | 65- a/d | 85- b |
| 6- d | 26- d | 46- b | 66- c | 86- a |
| 7- d | 27- a | 47- a | 67- d | 87- c |
| 8- c | 28- b | 48- c | 68- a | 88- c |
| 9- b | 29- c | 49- d | 69- c | 89- b |
| 10- d | 30- b | 50- d | 70- d | 90- c |
| 11- a | 31- c | 51- c | 71- c | 91- d |
| 12- b | 32- b | 52- b | 72- b | 92- b |
| 13- b | 33- b | 53- c | 73- c | 93- b |
| 14- d | 34- b | 54- a | 74- a | 94- a |
| 15- a | 35- c | 55- d | 75- d | 95- b |
| 16- a | 36- a | 56- c | 76- c | 96- d |
| 17- a | 37- b | 57- c | 77- c | 97- d |
| 18- c | 38- a* | 58- c | 78- c | 98- a |
| 19- a | 39- d | 59- a | 79- a | 99- d |
| 20- c | 40- b | 60- d | 80- d | 100- d |
GS Paper- 1 Answer Key: Set D |
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| 1- a | 21- a | 41- b | 61- c | 81- b |
| 2- c | 22- b | 42- b | 62- b | 82- b |
| 3- d | 23- b | 43- b | 63- c | 83- a |
| 4- b | 24- d | 44- d | 64- a | 84- c |
| 5- d | 25- a | 45- d | 65- d | 85- c |
| 6- d | 26- a | 46- d | 66- c | 86- c |
| 7- a | 27- a | 47- d | 67- c | 87- d |
| 8- b | 28- c | 48- c | 68- c | 88- b |
| 9- c | 29- a | 49- b | 69- a | 89- a |
| 10- b | 30- c | 50- d | 70- d | 90- c |
| 11- c | 31- b | 51- d | 71- c | 91- c |
| 12- b | 32- b | 52- b | 72- a | 92- a |
| 13- b | 33- a | 53- b | 73- b | 93- a |
| 14- b | 34- d | 54- a | 74- c | 94- b |
| 15- c | 35- b | 55- b | 75- b | 95- a/d |
| 16- a | 36- b | 56- d | 76- a | 96- c |
| 17- b | 37- a | 57- d | 77- c | 97- d |
| 18- a* | 38- c | 58- a | 78- c | 98- a |
| 19- d | 39- d | 59- d | 79- b | 99- c |
| 20- b | 40- d | 60- d | 80- c | 100- d |
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