Environmental Laws of India: Constitution, Statutes, NGT and Doctrines
India's environmental law for UPSC: Articles 21, 48A and 51A(g), the Water, Air, Forest and EP Acts, Forest Rights Act, NGT, pollution boards and judicial doctrines.
SyllabusGS III · Conservation, environmental pollution and degradation (GS III); statutory, regulatory and quasi-judicial bodies (GS II)
Prerequisites: Environmental Laws and Institutions — overview · Fundamental Rights · Directive Principles and Fundamental Duties
The Hook: A Night in Bhopal
On the night of 2–3 December 1984, methyl isocyanate gas leaked from the Union Carbide India Limited pesticide plant in Bhopal, killing thousands of people and injuring many more. The disaster exposed how weak India’s laws were for regulating hazardous industries. Within two years Parliament passed the Environment (Protection) Act, 1986 — an umbrella law giving the Central Government wide powers to protect the environment.
The question it raises: where does the State’s power — and duty — to protect the environment come from, and how have Parliament and the courts built on it?
The Core Concept
Constitutional foundations
| Provision | What it does |
|---|---|
| Article 21 | Right to life read by the Supreme Court to include the right to a pollution-free environment (Subhash Kumar v. State of Bihar, 1991) |
| Article 48A (DPSP) | “The State shall endeavour to protect and improve the environment and to safeguard the forests and wild life of the country” — inserted by the 42nd Amendment (1976) |
| Article 51A(g) (Fundamental Duty) | Duty of every citizen “to protect and improve the natural environment including forests, lakes, rivers and wild life, and to have compassion for living creatures” — also 42nd Amendment |
| Article 253 | Parliament can legislate for the whole or any part of India to implement international treaties and decisions of international conferences |
| Seventh Schedule | The 42nd Amendment moved forests and protection of wild animals and birds from the State List to the Concurrent List |
In March 2024, in M.K. Ranjitsinh v. Union of India (the Great Indian Bustard case), the Supreme Court recognised a right against the adverse effects of climate change, drawing on Articles 14 and 21.
The major statutes
| Act | Key features |
|---|---|
| Wildlife (Protection) Act, 1972 | Protected areas, schedules, hunting and trade controls |
| Water (Prevention and Control of Pollution) Act, 1974 | India’s first major pollution law; created the Central and State Pollution Control Boards; “consent to establish” and “consent to operate” regime |
| Forest (Conservation) Act, 1980 | Prior approval of the Central Government needed to de-reserve forests or divert forest land for non-forest purposes. Renamed the Van (Sanrakshan Evam Samvardhan) Adhiniyam, 1980 by the Forest (Conservation) Amendment Act, 2023, which also exempted certain categories of land and projects |
| Air (Prevention and Control of Pollution) Act, 1981 | Extended the CPCB and SPCBs’ role to air; air pollution control areas |
| Environment (Protection) Act, 1986 | Umbrella law enacted under Article 253 to implement the decisions of the 1972 Stockholm Conference; basis for the EIA and CRZ notifications and the waste-management rules |
| Public Liability Insurance Act, 1991 | Compulsory insurance for those handling hazardous substances, giving no-fault relief to victims |
| Biological Diversity Act, 2002 | Implements the CBD; NBA, SBBs, BMCs |
| Scheduled Tribes and Other Traditional Forest Dwellers (Recognition of Forest Rights) Act, 2006 | Recognises individual and community forest rights; the Gram Sabha initiates the process |
| National Green Tribunal Act, 2010 | Specialised tribunal for environmental cases |
| Compensatory Afforestation Fund Act, 2016 | National and State funds for money collected when forest land is diverted (CAMPA) |
| Commission for Air Quality Management in NCR and Adjoining Areas Act, 2021 | Regional air-quality body for Delhi-NCR |
Inside the Environment (Protection) Act, 1986
- Section 2(a) defines “environment” to include water, air and land and the inter-relationships among them and living beings and property.
- Section 3 — the Central Government may take all measures it considers necessary to protect and improve the environment, including setting standards and constituting authorities.
- Section 5 — power to issue directions, including closure, prohibition or regulation of any industry, and stoppage of electricity or water supply.
- Section 19 — courts take cognizance on a complaint by the Government or by any person who has given at least 60 days’ notice to the authorities — a citizen-suit provision.
Since 2023, amendments have replaced imprisonment with monetary penalties for a number of offences under the Environment (Protection), Air and Water Acts, as part of a wider decriminalisation drive.
The National Green Tribunal (NGT)
- Established on 18 October 2010 under the NGT Act, 2010. Principal bench in New Delhi; zonal benches in Bhopal, Pune, Kolkata and Chennai.
- Chairperson: a person who is or has been a Judge of the Supreme Court or Chief Justice of a High Court. The Tribunal has judicial members and expert members.
- Section 20: applies the principles of sustainable development, precautionary principle and polluter pays.
- Section 19: not bound by the Code of Civil Procedure; guided by the principles of natural justice.
- Section 22: appeal against its orders lies to the Supreme Court within 90 days.
- Jurisdiction (Schedule I) — seven Acts: Water Act 1974, Water Cess Act 1977, Forest (Conservation) Act 1980, Air Act 1981, Environment (Protection) Act 1986, Public Liability Insurance Act 1991, and Biological Diversity Act 2002.
- Not in Schedule I: the Wildlife (Protection) Act, 1972 and the Forest Rights Act, 2006.
Key institutions
| Institution | Basis | Note |
|---|---|---|
| Ministry of Environment, Forest and Climate Change (MoEFCC) | Government of India | Nodal ministry; “Climate Change” added to its name in 2014 |
| Central Pollution Control Board (CPCB) | Water Act, 1974 | Also performs functions under the Air Act; sets standards and coordinates SPCBs |
| State Pollution Control Boards / Pollution Control Committees (UTs) | Water and Air Acts | Grant consents, monitor, enforce |
| Genetic Engineering Appraisal Committee (GEAC) | Rules of 1989 under the Environment (Protection) Act | Appraises proposals for release of genetically engineered organisms |
| Forest Survey of India | MoEFCC, Dehradun | Biennial India State of Forest Report |
| Botanical Survey of India / Zoological Survey of India | MoEFCC; both headquartered in Kolkata | Surveys of flora (1890) and fauna (1916) |
| Wildlife Institute of India | Autonomous institute, Dehradun | Research, training; partners NTCA in tiger estimation |
| Animal Welfare Board of India | Prevention of Cruelty to Animals Act, 1960 | Advisory statutory body |
Judicial doctrines
| Doctrine | Meaning | Case |
|---|---|---|
| Absolute liability | An enterprise engaged in hazardous activity is absolutely liable for harm, with no exceptions (stricter than the English rule of strict liability) | M.C. Mehta v. Union of India (1987), the oleum gas leak case |
| Polluter pays | The polluter bears the cost of remedying the damage | Indian Council for Enviro-Legal Action v. Union of India (1996) |
| Precautionary principle | Lack of scientific certainty is no reason to postpone measures; burden of proof on the developer | Vellore Citizens’ Welfare Forum v. Union of India (1996), which also held sustainable development part of the law of the land |
| Public trust | The State holds natural resources such as rivers, forests and the seashore in trust for the public | M.C. Mehta v. Kamal Nath (1997) |
| Continuing mandamus / wide meaning of “forest” | “Forest” understood in its dictionary sense irrespective of ownership; court supervises over time | T.N. Godavarman Thirumulpad v. Union of India (1996 onwards) |
| Gram Sabha’s say | Gram Sabhas to decide on religious and cultural rights affected by mining under the Forest Rights Act | Orissa Mining Corporation v. MoEF (2013), the Niyamgiri case |
graph TD
A[Constitution: Art 21, 48A, 51A-g, 253] --> B[Statutes: Water 1974, Air 1981, EP Act 1986, Forest 1980, FRA 2006]
B --> C[Rules and notifications: EIA, CRZ, waste rules]
B --> D[Institutions: MoEFCC, CPCB, SPCBs, CAQM]
A --> E[Courts: Supreme Court, High Courts]
E --> F[Doctrines: absolute liability, polluter pays, precaution, public trust]
B --> G[NGT - 2010]Memory Anchors
NGT’s seven Acts — “Water, Water-cess, Forest, Air, EP, PLI, Bio”: Water 1974 · Water Cess 1977 · Forest 1980 · Air 1981 · EP 1986 · Public Liability Insurance 1991 · Biological Diversity 2002. Missing: Wildlife (1972) and FRA (2006).
Chronology of pollution laws — “Water before Air before Umbrella”: Water 1974 → Air 1981 → EP Act 1986.
Doctrines in one line each:
| Doctrine | Hook |
|---|---|
| Absolute liability | “No excuses” — oleum gas, 1987 |
| Polluter pays | “You broke it, you pay” — 1996 |
| Precautionary | “When in doubt, don’t” — Vellore, 1996 |
| Public trust | “The State is a trustee, not an owner” — Kamal Nath, 1997 |
One-line Mains hook: India has some of the world’s most comprehensive environmental laws; the gap lies in implementation capacity, not in legal text.
For Prelims
- 42nd Amendment (1976): Article 48A, Article 51A(g), and forests and wildlife to the Concurrent List.
- CPCB was created under the Water Act, 1974, not the EP Act.
- EP Act, 1986: enacted under Article 253; Section 19 allows citizen complaints after 60 days’ notice.
- NGT: 2010; chairperson a former SC judge or HC Chief Justice; appeal to SC within 90 days; seven Acts in Schedule I — not WPA 1972 or FRA 2006.
- Forest (Conservation) Act, 1980 renamed the Van (Sanrakshan Evam Samvardhan) Adhiniyam in 2023.
- FRA, 2006: the Gram Sabha initiates the process of determining forest rights.
- Absolute liability — oleum gas case (1987); public trust — Kamal Nath (1997).
For Mains
- Dimensions: constitutional (Article 21 and environmental rights; federal division of powers), institutional (capacity and independence of pollution control boards; NGT vacancies), economic (compliance costs; ease of doing business), social (forest dwellers’ rights; environmental justice), judicial (activism versus overreach).
- Keywords: environmental rule of law, sustainable development, polluter pays, precautionary principle, public trust, intergenerational equity, environmental justice, regulatory capture, decriminalisation.
- Value-addition: Bhopal (1984) as the trigger for the EP Act; the oleum gas case on absolute liability; Niyamgiri (2013) on Gram Sabha consent; the 2024 climate-rights recognition in M.K. Ranjitsinh.
Common Traps
In the News
- August 2023 — Forest (Conservation) Amendment Act, 2023 renamed the 1980 Act and changed its applicability.
- March 2024 — Supreme Court in M.K. Ranjitsinh v. Union of India recognised a right against the adverse effects of climate change.
- See current affairs for NGT orders and new rules.
Practice
Prelims
The National Green Tribunal has jurisdiction over civil cases relating to which of the following Acts?
- Water (Prevention and Control of Pollution) Act, 1974
- Wildlife (Protection) Act, 1972
- Biological Diversity Act, 2002
- Scheduled Tribes and Other Traditional Forest Dwellers (Recognition of Forest Rights) Act, 2006
Select the correct answer using the code given below.
Solution
Schedule I of the NGT Act lists seven Acts, including the Water Act, 1974 and the Biological Diversity Act, 2002. The Wildlife (Protection) Act, 1972 and the Forest Rights Act, 2006 are not included — the most-tested trap on the NGT.
Answer: A
Which of the following changes were made by the Constitution (Forty-second Amendment) Act, 1976?
- Insertion of Article 48A on protection and improvement of the environment
- Insertion of a Fundamental Duty to protect and improve the natural environment
- Transfer of “forests” from the State List to the Concurrent List
Select the correct answer using the code given below.
Solution
All three were made by the 42nd Amendment (1976): Article 48A (DPSP), Article 51A(g) (Fundamental Duty), and the shift of forests and protection of wild animals and birds to the Concurrent List.
Answer: D
Consider the following pairs:
| Doctrine | Case |
|---|---|
| 1. Polluter pays | Indian Council for Enviro-Legal Action v. Union of India |
| 2. Public trust | M.C. Mehta v. Kamal Nath |
| 3. Absolute liability | Vellore Citizens’ Welfare Forum v. Union of India |
How many of the pairs given above are correctly matched?
Solution
Pairs 1 and 2 are correct. Pair 3 is incorrect — absolute liability was laid down in M.C. Mehta v. Union of India (1987), the oleum gas case. Vellore Citizens’ Welfare Forum (1996) is associated with the precautionary principle and sustainable development. That makes two.
Answer: B
Mains
Critically examine the role of the National Green Tribunal in strengthening environmental governance in India.
Solution
Introduction: The National Green Tribunal, set up in 2010, is a specialised forum for environmental disputes with judicial and expert members. It applies the principles of sustainable development, precaution and polluter pays (Section 20 of the NGT Act).
Body:
- Contributions:
- Faster, specialised adjudication compared with regular courts; expert members bring technical understanding.
- Wide access: relaxed procedure, not bound by the Code of Civil Procedure.
- Active use of polluter-pays compensation, monitoring committees and suo motu action on issues such as river pollution, solid waste and air quality.
- Has helped mainstream environmental principles into administrative decision-making.
- Limitations:
- Jurisdiction excludes the Wildlife (Protection) Act and the Forest Rights Act.
- Vacancies and limited zonal benches restrict access.
- Weak compliance with orders; dependence on the same under-resourced pollution control boards.
- Criticism of heavy fines without follow-through, and of orders sometimes seen as policy-making.
- Appeals to the Supreme Court can delay finality.
- Way forward: fill vacancies, expand benches, extend jurisdiction to wildlife and forest-rights matters, strengthen enforcement capacity of pollution boards, and track compliance transparently.
Conclusion: The NGT has made environmental justice more accessible and specialised; its effectiveness now depends on executive capacity to implement its orders.
Quick Revision
| Point | One-liner |
|---|---|
| Art 48A / 51A(g) | 42nd Amendment, 1976 |
| Art 253 | Basis of the EP Act, 1986 |
| Water Act | 1974; created CPCB and SPCBs |
| Air Act | 1981 |
| Forest Act | 1980; renamed Van (Sanrakshan Evam Samvardhan) Adhiniyam, 2023 |
| EP Act | 1986; umbrella; Section 19 citizen suit |
| FRA | 2006; Gram Sabha initiates |
| NGT | 2010; 7 Acts; appeal to SC in 90 days |
| Absolute liability | Oleum gas, 1987 |
| Public trust | Kamal Nath, 1997 |
Key Takeaways
- Environmental duties are rooted in the Constitution — Articles 21, 48A, 51A(g) and 253.
- Know which Act created which body, and which Acts the NGT can hear.
- Indian courts have developed strong doctrines — absolute liability, polluter pays, precaution, public trust — that you should cite in Mains answers.
Related Topics
- Environmental Laws and Institutions — quick revision
- Environmental Laws and Institutions — practice questions
- Protected Areas and Wildlife
- Environmental Impact Assessment
- Statutory, Regulatory and Quasi-Judicial Bodies