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UPSC IAS Prelims 2023 GS Paper 1 was conducted today in the 1st session. The question paper of the same was published on the blog. Following the successful completion of the Prelims, candidates are eagerly looking for the UPSC IAS Prelims 2023 GS Paper 1 answer key to gauge their performance and estimate their chances of cracking one of the most competitive examinations in the country.

Therefore, we are releasing the **Answer Key for Prelims 2023 GS Paper 1. **You can download the PDF or just match the answers from the table below:

**UPSC Civil Services Prelims 2023 Question Papers: Click Here**

**ANSWER KEY **

Q. No. | SET A | SET B | SET C | SET D |

1 | a | a | b | b |

2 | b | b | b | c |

3 | b | b | d | d |

4 | a | d | c | b |

5 | d | d | b | b |

6 | d | b | b | c |

7 | c | b | d | b |

8 | a | a | d | d |

9 | d | c | c | c |

10 | d | d | c | a |

11 | c | a | a | a |

12 | c | a | b | c |

13 | a | c | a | d |

14 | a | x | d | d |

15 | c | a | c | c |

16 | d | d | c | d |

17 | b | b | c | a |

18 | c | b | d | c |

19 | b | b | a | a |

20 | c | c | d | a |

21 | d | c | b | a |

22 | a | c | c | b |

23 | b | a | d | a |

24 | a | a | b | d |

25 | b | c | b | c |

26 | b | d | c | c |

27 | c | b | b | c |

28 | c | c | d | d |

29 | b | b | c | a |

30 | c | c | a | d |

31 | a | a | a | b |

32 | a | b | c | c |

33 | c | b | d | a |

34 | x | a | d | c |

35 | a | d | c | b |

36 | d | d | d | a |

37 | b | c | a | d |

38 | b | a | c | d |

39 | b | d | a | b |

40 | c | d | a | c |

41 | a | d | b | b |

42 | b | a | c | b |

43 | b | b | a | d |

44 | d | a | c | c |

45 | d | b | b | b |

46 | b | b | a | b |

47 | b | c | d | d |

48 | a | c | d | d |

49 | c | b | b | c |

50 | d | c | c | c |

51 | b | b | a | a |

52 | c | b | b | b |

53 | a | d | b | b |

54 | c | c | d | a |

55 | b | b | d | d |

56 | a | b | b | d |

57 | d | d | b | c |

58 | d | d | a | a |

59 | b | c | c | d |

60 | c | c | d | d |

61 | a | a | a | d |

62 | c | b | a | a |

63 | d | a | c | b |

64 | d | d | x | a |

65 | c | c | a | b |

66 | d | c | d | b |

67 | a | c | b | c |

68 | c | d | b | c |

69 | a | a | b | b |

70 | a | d | c | c |

71 | b | a | d | c |

72 | c | c | a | c |

73 | d | d | b | a |

74 | b | d | a | a |

75 | b | c | b | c |

76 | c | d | b | d |

77 | b | a | c | b |

78 | d | c | c | c |

79 | c | a | b | b |

80 | a | a | c | c |

81 | a | b | c | a |

82 | b | c | c | b |

83 | a | a | a | b |

84 | d | c | a | d |

85 | c | b | c | d |

86 | c | a | d | b |

87 | c | d | b | b |

88 | d | d | c | a |

89 | a | b | b | c |

90 | d | c | c | d |

91 | b | b | a | a |

92 | b | c | b | a |

93 | d | d | b | c |

94 | c | b | a | x |

95 | b | b | d | a |

96 | b | c | d | d |

97 | d | b | c | b |

98 | d | d | a | b |

99 | c | c | d | b |

100 | c | a | d | c |

** **

**Marking scheme of UPSC Prelims 2023 GS Paper 1 to calculate your marks from the answer key**

**Total Number of Questions:** The GS Paper 1 consists of 100 questions.

**Total Marks:** Each question carries 2 marks, making the paper worth a total of 200 marks.

**Negative Marking:** There is a negative marking system in place for incorrect answers. For every wrong answer, one-third (0.66) of the marks assigned to that question will be deducted as a penalty.

**Unattempted Questions:** If a candidate leaves a question unanswered or unattempted, no marks will be deducted for that question.

**Multiple Answers:** If a candidate marks more than one answer for a single question, it will be treated as a ‘wrong answer’, even if one of the marked options is correct. The negative marking penalty will be applied in such cases.

Therefore, you can calculate your marks by following formula:

Total Marks = (Number of Correct Answers * Marks per Correct Answer) – (Number of Incorrect Answers * Negative Marks per Incorrect Answer)