Prelims GS Paper IGeography — PhysicalHigh-yield

Monsoon — Mechanism, ENSO, IOD, MJO & Indian Impact

मानसून — तंत्र, ENSO, IOD, MJO और भारतीय प्रभाव

Monsoon — Mechanism, ENSO, IOD, MJO & Indian Impact is part of the UPSC Prelims GS Paper I syllabus, under Geography — Physical. It appeared in Prelims GS Paper I question papers in 6 of the 10 years from 2016 to 2025 (2016, 2018, 2020, 2022, 2024, 2025). It is marked high-yield: a topic worth revising more than once.

What should you study in Monsoon?

  • SW & NE monsoon mechanisms
  • ENSO (El Niño/La Niña) & Indian monsoon
  • IOD (Indian Ocean Dipole) & MJO impact
  • Breaks in monsoon & onset dates

How often is Monsoon asked in UPSC Prelims?

Asked in 6 of 10 years, including 3 of the last 5. Highlighted years below are the ones it appeared in.

  1. 2016: asked
  2. 2017: not asked
  3. 2018: asked
  4. 2019: not asked
  5. 2020: asked
  6. 2021: not asked
  7. 2022: asked
  8. 2023: not asked
  9. 2024: asked
  10. 2025: asked

About the Prelims GS Paper I paper

General Studies Paper I is the Prelims paper that decides the cut-off: 100 multiple-choice questions for 200 marks, with negative marking for wrong answers. See all 88 Prelims GS Paper I topics.

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