---
title: "Environmental Laws & Institutions in India Guide"
description: "Learn India's environmental statutes, constitutional mandate and regulatory institutions, from the EPA 1986 to the NGT and CAMPA, for UPSC Prelims and Mains."
url: "https://modeldiplomat.com/learn/lessons/upsc-environment-ecology-environmental-laws-institutions-india"
---

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Environmental laws & institutions (India)

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# Environmental laws & institutions (India)

India's environmental statutes, constitutional mandate, and regulatory institutions—from the EPA 1986 to the NGT and CAMPA—for UPSC Prelims and Mains GS-3.

## The constitutional foundation

India's environmental governance rests on a constitutional scaffold inserted largely by the **42nd Amendment Act, 1976**. **Article 48A** (Directive Principle) directs the State to "protect and improve the environment and to safeguard the forests and wild life of the country." **Article 51A(g)** (Fundamental Duty) obliges every citizen "to protect and improve the natural environment including forests, lakes, rivers and wild life." Though both are non-justiciable, the Supreme Court has read environmental protection into the justiciable **Article 21** (right to life) in *Subhash Kumar v. State of Bihar* (1991) and *M.C. Mehta v. Union of India* (the Oleum Gas Leak and Ganga Pollution lines of cases), establishing the right to a healthy environment as enforceable.

The 42nd Amendment also moved **"Forests" (Entry 17A)** and **"Protection of wild animals and birds" (Entry 17B)** from the State List to the **Concurrent List**, enabling central legislation.

## The core statutes in chronological sequence

Retain this dated sequence for Prelims:

- **Wildlife (Protection) Act, 1972** — creates protected areas (national parks, sanctuaries, conservation and community reserves), six schedules of species protection, and the **National Board for Wildlife** chaired by the Prime Minister. The **2022 Amendment** rationalised schedules to four and aligned the Act with **CITES**.
- **Water (Prevention and Control of Pollution) Act, 1974** — established the **Central Pollution Control Board (CPCB)** and **State Pollution Control Boards (SPCBs)**; enacted under **Article 252** with State consent.
- **Forest (Conservation) Act, 1980** — requires prior Central Government approval to divert forest land for non-forest use; the basis of compensatory afforestation. Amended and renamed **Van (Sanrakshan Evam Samvardhan) Adhiniyam** by the 2023 Amendment.
- **Air (Prevention and Control of Pollution) Act, 1981** — extended the CPCB/SPCB mandate to air quality.
- **Environment (Protection) Act, 1986 (EPA)** — the umbrella legislation passed after the **Bhopal Gas Tragedy (December 1984)** under **Article 253** (legislation to implement the **1972 Stockholm Conference**). It empowers the Centre to set standards, regulate hazardous substances, and issue the **EIA Notification, 2006**, **Coastal Regulation Zone Notification**, and rules on plastic, e-waste, and hazardous waste.
- **Biological Diversity Act, 2002** — implements the **Convention on Biological Diversity (1992)**; creates the **National Biodiversity Authority (NBA)**, State Biodiversity Boards, and Biodiversity Management Committees; governs access and benefit-sharing.

## Judicial doctrines

The Court has imported global principles into domestic law: the **Polluter Pays** and **Precautionary** principles and **Sustainable Development** in *Vellore Citizens' Welfare Forum v. Union of India* (1996); **Absolute Liability** in *M.C. Mehta v. Union of India* (1987), a stricter rule than the English *Rylands v. Fletcher* strict liability; and the **Public Trust Doctrine** in *M.C. Mehta v. Kamal Nath* (1997). These doctrines are repeatedly tested as standalone Prelims options and as Mains answer anchors.

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