2018 · GS Paper 3 · Q17 · 15 marks

How does biodiversity vary in India? How is the Biological Diversity Act, 2002 helpful in conservation of flora and fauna?

In short

India's biodiversity varies across ten biogeographic zones and four global hotspots, richest in the Northeast and Western Ghats, and the Biological Diversity Act, 2002 conserves it through a three-tier structure, local biodiversity registers and benefit sharing. Divya Pharmacy v Union of India (2018) extended benefit sharing to Indian firms.

Model answer

Ghissu Editorial · Verified 4 Oct 2026

Introduction
India covers 2.4% of the earth's land but holds 7-8% of recorded species (PIB, 2025). The Biological Diversity Act, 2002, giving effect to the Convention on Biological Diversity, seeks to conserve this unevenly spread wealth and share its benefits.
How Biodiversity Varies Across India
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Biogeographic zones

Ten zones, from the Trans-Himalayan cold desert to the Thar, the Deccan, the coasts and the islands, each carry distinct species (Wildlife Institute of India).

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Hotspots and endemism

Four of the world's 36 hotspots overlap India, and the Western Ghats hold a large share of endemic amphibians.

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Gradients and ecosystems

Richness peaks in the wet Northeast and Western Ghats and thins in the arid west, while the Sundarbans mangroves and Gulf of Mannar reefs add ecosystem variety.

How the Biological Diversity Act, 2002 Helps Conservation
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Local custody

People's Biodiversity Registers record species and traditional knowledge, giving evidence against biopiracy like the turmeric patent dispute.

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Access and benefit sharing

Foreign entities need National Biodiversity Authority approval, and Divya Pharmacy v Union of India (2018) extended benefit sharing to Indian firms.

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Heritage sites and gaps

Sites like Nallur Tamarind Grove (2007) are protected, though weak committees and the 2023 amendment's easing of rules dilute the Act.

Way Forward
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Fund and digitise

Resource local committees, digitise registers and publish benefit flows, linking sites to the 30x30 target.

Conclusion
India's biodiversity varies from the Himalayan snowline to the coral reefs. With funded local committees and enforced benefit sharing, the 2002 Act can make conservation pay for the communities that guard it.

This model answer is indicative and the model can make mistakes; please verify key facts independently.

Hand-drawn map: Biodiversity variation in India. Marked: .
Map: Biodiversity variation in India
Hand-drawn diagram: Three-Tier Structure of the Act. Three-Tier Structure of the Act. Flow: National Biodiversity Authority → State Biodiversity Boards → Biodiversity Management Committees → People's Biodiversity Registers
Diagram: Three-Tier Structure of the Act

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Question from the official UPSC Civil Services (Main) Examination 2018 paper. Answer written by Ghissu's engine and checked against our editorial standards. Found an error? Tell us and we correct it within 48 hours.

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