UPSC has conducted CSE 2020 Prelims on 04 October 2020. The exam was earlier scheduled on 31 May 2020. But, it was postponed to 04 October due to the spread of Coronavirus and Covid19 pandemic. Just after 95 days of the preliminary examination, UPSC has planned CSE 2020 mains from 08 January 2021 onwards.
Here, PendulumIAS presents a reliable and accurate UPSC 2020 answer key to help UPSC CSE 2020 preliminary candidates in finding out answers to the question asked by UPSC in CSE 2020 preliminary question paper and enable them in calculating their score and starting advance preparation for CSE 2020 mains.
UPSC Civil Services Prelims 2020 Answer Key of General Studies Paper 1 and CSAT 

Q. No. 
Set A 
Set B 
Set C 
Set D 

GS Paper 1 
CSAT 2020 
GS Paper 1 
CSAT 2020 
GS Paper 1 
CSAT 2020 
GS Paper 1 
CSAT 2020 

1 
B 

D 
D 
C 

A 

2 
B 

D 
C 
D 

A 

3 
D 

D 
C 
B 

C 

4 
D 

B 
B 
B 

A 

5 
B 

B 
B 
C 

A 

6 
D 

A 
D 
D 

C 

7 
D 

C 
C 
B 

A 

8 
D 

D 
A 
B 

A 

9 
A 

D 
C 
C 

D 

10 
C 

D 
D 
C 

D 

11 
B 

C 
A 
B 

D 

12 
A 

B 
A 
A 

A 

13 
D 

B 
C 
D 

D 

14 
A 

D 
B 
A 

A 

15 
D 

D 
D 
A 

A 

16 
D 

C 
B 
C 

B 

17 
D 

A 
D 
A 

A 

18 
D 

D 
C 
D 

C 

19 
D 

B 
D 
C 

D 

20 
C 

D 
C 
D 

C 

21 
C 

B 
B 
A 

B 

22 
B 

A 
D 
A 

A 

23 
A 

D 
C 
C 

D 

24 
C 

A 
B 
A 

A 

25 
C 

D 
C 
A 

A 

26 
A 

D 
C 
C 

C 

27 
B 

D 
A 
A 

A 

28 
A 

D 
A 
A 

D 

29 
A 

D 
B 
D 

C 

30 
A 

C 
C 
D 

D 

31 
C 

B 
C 
D 

B 

32 
B 

B 
D 
A 

D 

33 
B 

D 
C 
D 

A 

34 
D 

D 
A 
A 

D 

35 
D 

B 
B 
A 

B 

36 
C 

D 
C 
B 

C 

37 
A 

D 
A 
A 

B 

38 
D 

D 
B 
C 

D 

39 
B 

A 
C 
D 

C 

40 
D 

C 
A 
C 

B 

41 
D 

C 
A 
B 

C 

42 
D 

B 
B 
D 

D 

43 
D 

A 
C 
A 

B 

44 
B 

C 
D 
D 

B 

45 
B 

C 
A 
B 

C 

46 
A 

A 
A 
C 

D 

47 
C 

B 
D 
B 

B 

48 
D 

A 
C 
D 

B 

49 
D 

A 
A 
C 

C 

50 
D 

A 
B 
B 

C 

51 
B 

C 
C 
D 

B 

52 
D 

D 
C 
D 

B 

53 
A 

B 
B 
D 

D 

54 
D 

B 
C 
B 

D 

55 
B 

C 
C 
B 

B 

56 
C 

D 
B 
A 

D 

57 
B 

B 
D 
C 

D 

58 
D 

B 
C 
D 

D 

59 
C 

C 
C 
D 

A 

60 
B 

C 
B 
D 

C 

61 
D 

B 
D 
C 

C 

62 
A 

A 
D 
B 

B 

63 
D 

D 
B 
B 

A 

64 
A 

A 
B 
D 

C 

65 
A 

A 
C 
D 

C 

66 
B 

C 
D 
C 

A 

67 
A 

A 
C 
A 

B 

68 
C 

D 
B 
D 

A 

69 
D 

C 
C 
B 

A 

70 
C 

D 
A 
D 

A 

71 
A 

D 
D 
C 

B 

72 
A 

A 
C 
B 

A 

73 
C 

D 
D 
A 

D 

74 
A 

A 
B 
C 

A 

75 
A 

A 
A 
C 

D 

76 
C 

B 
B 
A 

D 

77 
A 

A 
D 
B 

D 

78 
A 

C 
D 
A 

D 

79 
D 

D 
D 
A 

D 

80 
D 

C 
C 
A 

C 

81 
B 

B 

B 

D 

82 
A 

D 

A 

D 

83 
D 

A 

D 

D 

84 
A 

D 

A 

B 

85 
A 

B 

D 

B 

86 
C 

C 

D 

A 

87 
A 

B 

D 

C 

88 
D 

D 

D 

D 

89 
C 

C 

D 

D 

90 
D 

B 

C 

D 

91 
C 

A 

B 

C 

92 
D 

A 

B 

B 

93 
B 

C 

D 

B 

94 
B 

A 

D 

D 

95 
C 

A 

B 

D 

96 
D 

C 

D 

C 

97 
B 

A 

D 

A 

98 
B 

A 

D 

D 

99 
C 

D 

A 

B 

100 
C 

D 

C 

D 

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