Mains GS Paper IIIEnvironment & Ecology

Ecosystems & Nature-Based Solutions — Mangroves, Wetlands, Grasslands

पारिस्थितिकी तंत्र और प्रकृति-आधारित समाधान

Ecosystems & Nature-Based Solutions — Mangroves, Wetlands, Grasslands is part of the UPSC Mains GS Paper III syllabus, under Environment & Ecology. It appeared in Mains GS Paper III question papers in 3 of the 10 years from 2016 to 2025 (2021, 2023, 2025).

What should you study in Ecosystems & Nature-Based Solutions?

  • Mangrove restoration — Mangrove Alliance for Climate; India's +74 km² gain
  • Wetland conservation — Ramsar sites (75+); National Wetland Conservation Plan
  • Grassland & savanna — Blackbuck, Great Indian Bustard habitats
  • Urban biodiversity — urban forests, rooftop gardens, green corridors

How often is Ecosystems & Nature-Based Solutions asked in UPSC Mains?

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

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

About the Mains GS Paper III paper

GS Paper III is a 250-mark descriptive Mains paper covering technology, economic development, biodiversity, environment, security and disaster management. See all 50 Mains GS Paper III topics.

Related topics to study next

Syllabus: UPSC Civil Services notification. Topic breakdown, subtopics and PYQ years: GS Score UPSC Syllabus 2026-27 booklet. Sources & credits

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