Environment & Ecology Environmental Laws and Institutions GS Paper III

Environmental Laws and Institutions — Quick Revision

One-page UPSC revision of India's environmental law: constitutional articles, major Acts and years, NGT jurisdiction, institutions and judicial doctrines with cases.

SyllabusGS III · Conservation, environmental pollution and degradation (GS III); statutory, regulatory and quasi-judicial bodies (GS II)

By 3 min read Updated Oct 2026 #quick revision#environment#environmental-laws-and-institutions

A last-week revision sheet for environmental law. Years, creating Acts and case names are the Prelims targets.

Constitution

ProvisionContent
Article 21Right to a pollution-free environment (Subhash Kumar, 1991)
Article 48ADPSP — protect and improve environment, safeguard forests and wildlife (42nd Amendment)
Article 51A(g)Fundamental Duty — protect natural environment, compassion for living creatures (42nd Amendment)
Article 253Laws to implement international agreements
Concurrent ListForests; protection of wild animals and birds (moved by 42nd Amendment)

Acts in Order

YearActRemember
1972Wildlife (Protection) ActNot in NGT’s Schedule I
1974Water ActCreated CPCB and SPCBs
1977Water Cess ActIn NGT’s Schedule I
1980Forest (Conservation) ActRenamed Van (Sanrakshan Evam Samvardhan) Adhiniyam in 2023
1981Air ActAir pollution control areas
1986Environment (Protection) ActUmbrella; Article 253; Stockholm 1972; Section 19 citizen suit
1991Public Liability Insurance ActNo-fault relief for hazardous-substance accidents
2002Biological Diversity ActNBA, SBBs, BMCs
2006Forest Rights ActGram Sabha initiates; not in NGT’s Schedule I
2010National Green Tribunal ActSeven Acts in Schedule I
2016Compensatory Afforestation Fund ActCAMPA funds
2021CAQM ActDelhi-NCR air quality

NGT

ItemKey fact
Established18 October 2010
BenchesPrincipal: New Delhi; zonal: Bhopal, Pune, Kolkata, Chennai
ChairpersonPresent or former SC judge or HC Chief Justice
Principles (Sec 20)Sustainable development, precaution, polluter pays
Procedure (Sec 19)Not bound by CPC; natural justice
Appeal (Sec 22)Supreme Court, within 90 days

Institutions

BodyBasis / HQ
CPCBWater Act, 1974
GEACRules of 1989 under the EP Act
Forest Survey of IndiaDehradun; biennial ISFR
BSI / ZSIKolkata; 1890 / 1916
Wildlife Institute of IndiaDehradun
Animal Welfare Board of IndiaPrevention of Cruelty to Animals Act, 1960

Doctrines

DoctrineCase
Absolute liabilityM.C. Mehta v. Union of India (1987, oleum gas)
Polluter paysIndian Council for Enviro-Legal Action (1996)
Precautionary principle; sustainable developmentVellore Citizens’ Welfare Forum (1996)
Public trustM.C. Mehta v. Kamal Nath (1997)
Dictionary meaning of forestT.N. Godavarman Thirumulpad (1996 onwards)
Gram Sabha decides (FRA)Orissa Mining Corporation — Niyamgiri (2013)
High-yield facts
  • Bhopal gas leak (2–3 December 1984) led to the EP Act, 1986.
  • CPCB is from the Water Act, not the EP Act.
  • NGT excludes WPA 1972 and FRA 2006.
  • Absolute liability allows no exceptions; strict liability does.
  • M.K. Ranjitsinh (March 2024): right against adverse effects of climate change (Articles 14 and 21).
Traps
  • Article 48A is a DPSP; Article 51A(g) is a Fundamental Duty — both from 1976, not the original Constitution.
  • Appeals from the NGT go to the Supreme Court, not the High Court.
  • Under the FRA, the Gram Sabha, not the Forest Department, starts the rights process.
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