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UPSC Prelims 2020 GS Paper I: answer key and question paper

Held 4 October 2020 · Series A · 100 questions · 2 hours · +2 / −0.66

The complete Series A answer key for the 2020 Civil Services Prelims General Studies Paper I, from UPSC's official final answer key, with the questions UPSC dropped, the subject-wise split and three questions explained in full.

Take the full 2020 paper under exam conditions. 100 questions, 2 hours, +2 / −0.66, exactly as UPSC set them. Then see your score, UPSC's key for every question and explanations for 10 of them, starting with your mistakes. Free with Google sign-in; Pro unlocks every explanation in English and தமிழ்.

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Key facts

ExamUPSC Civil Services (Preliminary) Examination 2020, General Studies Paper I
Date4 October 2020
Question bookletSeries A, 100 questions, 2 hours
Marking+2 for a correct answer, −0.66 for a wrong one, 0 if left blank
Answer keyUPSC's official final answer key, checked against the file on upsc.gov.in
Dropped questionsQ27, Q52
Maximum marks196

Answer key, Series A

UPSC dropped 2 questions (Q27, Q52) from scoring, so the paper is marked out of 196. Other booklet series (B, C, D) have the same questions in a different order, so match your booklet to Series A before checking answers.

  1. 1b
  2. 2b
  3. 3d
  4. 4d
  5. 5b
  6. 6d
  7. 7d
  8. 8d
  9. 9a
  10. 10c
  11. 11b
  12. 12a
  13. 13d
  14. 14a
  15. 15d
  16. 16d
  17. 17d
  18. 18d
  19. 19d
  20. 20c
  21. 21b
  22. 22b
  23. 23a
  24. 24c
  25. 25c
  26. 26a
  27. 27Dropped
  28. 28a
  29. 29a
  30. 30a
  31. 31c
  32. 32b
  33. 33b
  34. 34d
  35. 35d
  36. 36c
  37. 37d
  38. 38b
  39. 39c
  40. 40d
  41. 41c
  42. 42d
  43. 43d
  44. 44d
  45. 45b
  46. 46a
  47. 47c
  48. 48a
  49. 49a
  50. 50d
  51. 51b
  52. 52Dropped
  53. 53a
  54. 54d
  55. 55b
  56. 56c
  57. 57b
  58. 58b
  59. 59b
  60. 60b
  61. 61c
  62. 62a
  63. 63d
  64. 64b
  65. 65a
  66. 66b
  67. 67a
  68. 68c
  69. 69d
  70. 70c
  71. 71b
  72. 72a
  73. 73c
  74. 74a
  75. 75a
  76. 76d
  77. 77a
  78. 78a
  79. 79d
  80. 80d
  81. 81a
  82. 82a
  83. 83d
  84. 84a
  85. 85a
  86. 86a
  87. 87a
  88. 88d
  89. 89c
  90. 90a
  91. 91c
  92. 92d
  93. 93b
  94. 94b
  95. 95c
  96. 96d
  97. 97a
  98. 98b
  99. 99c
  100. 100c

Subject-wise split

How the 100 questions divide across the syllabus, by 1way's classification of each question.

SubjectQuestionsShare
Economy22
Environment16
History15
Polity14
Science & Technology13
Geography11
Art & Culture4
Governance & Ethics3
International Relations2

Three questions from the 2020 paper, explained

Try each one before opening the answer. This is the kind of explanation you get after taking the paper: the reasoning behind every option, with sources.

Question 6 · Economy

Along with the Budget, the Finance Minister also places other documents before the Parliament which include ‘The Macro Economic Framework Statement’. The aforesaid document is presented because this is mandated by

  1. (a)Long standing parliamentary convention
  2. (b)Article 112 and Article 110(1) of the Constitution of India
  3. (c)Article 113 of the Constitution of India
  4. (d)Provisions of the Fiscal Responsibility and Budget Management Act, 2003
Show the answer and explanation

Answer: (d) Provisions of the Fiscal Responsibility and Budget Management Act, 2003

Section 3 of the Fiscal Responsibility and Budget Management (FRBM) Act, 2003 requires the Central Government to lay before both Houses of Parliament, along with the annual financial statement, the Macro-economic Framework Statement together with the fiscal policy statements (since the 2018 amendment, a single Medium-term Fiscal Policy cum Fiscal Policy Strategy Statement). The Macro-economic Framework Statement assesses growth prospects, the fiscal balance and the external sector. Article 112 requires only the annual financial statement (the Budget) and Article 110(1) defines a Money Bill; Article 113 deals with the procedure for estimates and demands for grants. Presentation of this document is a statutory requirement, not merely a long-standing convention. Hence (d).

Question 72 · Environment

With reference to Indian elephants, consider the following statements :

Which of the statements given above is/are correct ?

  1. (a)1 and 2 only
  2. (b)2 and 4 only
  3. (c)3 only
  4. (d)1, 3 and 4 only
Show the answer and explanation

Answer: (a) 1 and 2 only

Asian elephant herds are matriarchal: a family group of related females and their young is led by the oldest female, while adult males live alone or in loose bachelor groups, so statement 1 is correct. Elephants have the longest gestation of any land mammal, about 18 to 22 months, so a maximum of 22 months is correct (statement 2). Females can breed from their mid-teens until about 60 years of age, so calving is not limited to 40 years; statement 3 is incorrect. The 2017 synchronised elephant population estimation found the highest number in Karnataka (about 6,049), followed by Assam and Kerala, so statement 4 is incorrect. Hence 1 and 2 only. What changed since 2020: the DNA-based all-India estimation (SAIEE 2021-25) put India's wild elephants at about 22,446, with Karnataka still the highest at 6,013 (Wildlife Institute of India, SAIEE 2021-25 report, 2025).

Question 23 · History

Which of the following statements correctly explains the impact of Industrial Revolution on India during the first half of the nineteenth century ?

  1. (a)Indian handicrafts were ruined.
  2. (b)Machines were introduced in the Indian textile industry in large numbers.
  3. (c)Railway lines were laid in many parts of the country.
  4. (d)Heavy duties were imposed on the imports of British manufactures.
Show the answer and explanation

Answer: (a) Indian handicrafts were ruined.

The Industrial Revolution enabled Britain to produce cheap machine-made textiles and other goods on a large scale. After the Charter Act of 1813 ended the East India Company's trade monopoly, British manufactures entered India with only nominal duties, while Indian goods faced high duties in Britain; together with the loss of court patronage, this led to the decline of Indian handicrafts, often called deindustrialisation. Option (b) is incorrect: the first cotton mill came up in Bombay only in 1854, and machinery spread in the second half of the century. Option (c) is incorrect: the first railway line (Bombay to Thane) opened in 1853. Option (d) is the opposite of what happened, since British imports faced low duties. Hence (a).

The other 97 questions are waiting. 100 questions, 2 hours, +2 / −0.66, exactly as UPSC set them. Then see your score, UPSC's key for every question and explanations for 10 of them, starting with your mistakes. Free with Google sign-in; Pro unlocks every explanation in English and தமிழ்.

Take the 2020 paper

Other years

Every UPSC Prelims GS Paper I from 2016 to 2026, each with UPSC's official key. See all past papers.

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