UPSC Notes

Role of Judiciary in Environmental Protection

PYQs

8

Articles

1

Momentum

21

Phase IFoundation

Background

Overview

Understanding the judiciary's role in governance, its contribution to environmental protection, the concept of judicial activism vs. restraint, and the evolution of environmental jurisprudence in India is crucial for GS2 (Polity) and GS3 (Environment).

The Indian judiciary, particularly the Supreme Court, has played a pivotal role in shaping environmental law and policy through landmark judgments, often adopting an activist stance to protect the environment and ensure sustainable development. This role involves interpreting constitutional provisions, enforcing statutory laws, and evolving new principles of environmental jurisprudence.

Phase IIStatic core

Facts & tables

Key facts

Public Interest Litigation (PIL)

A key tool for environmental advocacy, allowing citizens to approach courts for environmental protection.

Evolved Principles

Judiciary evolved principles like Polluter Pays, Precautionary Principle, and Sustainable Development.

Article 21 Interpretation

Right to Life (Article 21) expanded to include the right to a clean and healthy environment.

National Green Tribunal (NGT)

Establishment of a specialized body for effective and expeditious disposal of cases relating to environmental protection.

Reference table

Landmark Environmental Judgments

CasePrinciple/Impact
M.C. Mehta v. Union of India (Oleum Gas Leak Case)Absolute Liability, Polluter Pays Principle
Vellore Citizens' Welfare Forum v. Union of IndiaPrecautionary Principle, Sustainable Development
Subhash Kumar v. State of BiharRight to clean environment as part of Article 21

Reference table

Static syllabus anchors

TypeReference
Conceptual areaIndian Polity & Governance
Conceptual areaEnvironment & Ecology

Reference table

Institutions & roles

BodyRole
Supreme Court of IndiaInterprets and enforces environmental law
National Green Tribunal (NGT)Specialized environmental justice body
Phase IIIExam lens

Prelims angle

Overview

Prelims angle: Factual recall

Prelims angle: Conceptual understanding

Quick revision

  • Judiciary's role in environmental protection through PILs.
  • Evolution of principles: Polluter Pays, Precautionary, Sustainable Development.
  • Article 21's expansion to include right to clean environment.
  • Establishment of NGT for specialized environmental justice.
  • Debate on judicial activism vs. restraint in environmental matters.

Elimination traps

Constitutional vs statutoryDistinguish between constitutional provisions (e.g., Article 21, 48A, 51A(g)) and statutory laws (e.g., EPA, Wildlife Protection Act) that the judiciary interprets and enforces.

Check if created by Constitution or by Parliament.

High-confidence PYQs

Topic timeline

Indian Polity & GovernanceEnvironment & Ecology

Supreme Court has nurtured environmental law. Is it distancing itself from its legacy?

14 Aug 2026 · The Indian judiciary has been instrumental in environmental protection through judicial activism, PILs, and evolving principles like Polluter Pays and Precautionary Principle, often interpreting Article 21 broadly to include environmental rights.

Read article

Related topics

Practice writing on this topic

UPSC has asked 8 linked questions on Role of Judiciary in Environmental Protection in Mains. Write an answer to one — and get it evaluated.

UPSC Prelims PYQs on Role of Judiciary in Environmental Protection

Practice official previous year questions asked by UPSC related to this concept.

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