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Environmental, Social and Governance (ESG) - Principles and Practice · Environment

Environmental Laws and Regulation in India

Updated 11 October 2026 · Fact-checked

Environmental laws in India set rules to prevent pollution and protect natural resources. The main laws are the Environment (Protection) Act, 1986, the Water Act, 1974 and the Air Act, 1981. EIA screens projects before approval. Pollution control boards regulate consent and the National Green Tribunal decides environmental disputes. In answers, state the provision, apply it to the facts, then conclude.

Understand Environmental Laws and Regulation in India

India's environmental law rests on the Constitution. Article 48A directs the State to protect and improve the environment. Article 51A(g) makes it a duty of every citizen. Courts also read the right to a healthy environment into the right to life under Article 21.

The Water (Prevention and Control of Pollution) Act, 1974 and the Air (Prevention and Control of Pollution) Act, 1981 are the older pollution laws. Both create Pollution Control Boards: the Central Pollution Control Board (CPCB) and State Pollution Control Boards (SPCBs). Both require an industry to obtain the board's consent (to establish and to operate) before it discharges effluents or emits pollutants. Under the Air Act, the State Government can declare air pollution control areas.

The Environment (Protection) Act, 1986 is the umbrella law. It was passed after the Bhopal gas tragedy and gives the Central Government wide powers to take measures to protect and improve the environment. These include setting standards for emissions and discharges, restricting industries in certain areas, laying down safeguards for handling hazardous substances, and issuing directions, including closure or stoppage of power and water supply. Rules and notifications are made under it, for example on hazardous waste, plastic waste and the EIA process.

Environmental Impact Assessment (EIA) is a tool to study a project's likely environmental effects before it starts. The EIA Notification, 2006, issued under the EPA, requires prior environmental clearance for listed projects. The usual stages are screening, scoping, public consultation and appraisal. A project proponent applies, an expert committee appraises, and the regulatory authority grants or refuses clearance.

The National Green Tribunal (NGT), set up under the National Green Tribunal Act, 2010, hears civil cases on substantial environmental questions arising from the listed environmental statutes. It can order relief, compensation and restitution of the environment. It follows principles such as sustainable development, the precautionary principle and the polluter pays principle, and is not bound by the strict procedure of the Code of Civil Procedure. Appeals from the NGT lie to the Supreme Court.

For a company, these laws mean consents, clearances, standards, record keeping and disclosure. The company secretary helps track licences, filings and reporting, and flags risk to the board.

Key rules to remember

Umbrella law
Environment (Protection) Act, 1986 = Central Government's power to protect and improve the environment
Standards, restrictions on industry, hazardous substance safeguards, directions. Enacted after the Bhopal gas tragedy.
Water and Air Acts
Water Act, 1974 and Air Act, 1981 → CPCB + SPCBs → consent to establish and consent to operate
Without the board's consent, an industry should not discharge effluents or emit pollutants beyond permitted standards.
EIA stages
Screening → Scoping → Public consultation → Appraisal → Environmental clearance
Under the EIA Notification, 2006, issued under the EPA. Listed projects need prior clearance before starting.
NGT jurisdiction
NGT Act, 2010: civil cases involving a substantial question relating to environment under the listed Acts
Listed Acts include the Water Act, Air Act, EPA, Forest (Conservation) Act, Biological Diversity Act and the Public Liability Insurance Act. Appeal lies to the Supreme Court.
Guiding principles
Sustainable development + Precautionary principle + Polluter pays
The NGT applies these when deciding cases and awarding compensation.

How to solve Environmental Laws and Regulation in India questions

Use this method for any question on environmental laws, whether it asks for a description or a case-based analysis.

  1. 1Identify the type of question: explain a law, compare laws, or apply law to a fact situation.
  2. 2Name the relevant Act or notification first, for example the Water Act, 1974 or the EIA Notification, 2006.
  3. 3State the rule in plain words: who regulates, what is prohibited or required, and what approval is needed.
  4. 4Pick out the key facts: type of project, location, pollutant, whether consent or clearance was taken.
  5. 5Apply the rule to those facts and say which authority acts: Central Government, CPCB, SPCB or NGT.
  6. 6Add the consequence or remedy: refusal of consent, closure directions, penalty, compensation or restoration.
  7. 7Write a clear conclusion and, where useful, a practical compliance point for the company secretary.
  8. 8Do not quote section numbers or penalty amounts unless you are sure of them.

Quickest way: Law, Authority, Action

When to use it: Use when you have about 10 minutes for a short question and need a tight, structured answer.

  1. Write the Act and its purpose in one line.
  2. Name the authority that regulates: Central Government, CPCB or SPCB, or NGT.
  3. List the main requirement: consent, clearance, standards or compensation.
  4. Add one line on the consequence of non-compliance.
  5. Close with one practical compliance step for the company.

Common mistakes in Environmental Laws and Regulation in India

  • Treating the EPA, Water Act and Air Act as the same law.

    All three deal with pollution and sound alike.

    Fix: Remember: Water Act for water, Air Act for air, EPA as the umbrella law with wider central powers.

  • Saying the NGT hears every environmental dispute.

    Students read the name and assume unlimited scope.

    Fix: Say it hears civil cases involving a substantial environmental question under the listed Acts. Criminal prosecution under those laws goes to regular courts.

  • Confusing EIA with consent from the pollution control board.

    Both are approvals needed before a project runs.

    Fix: EIA clearance is project-level and comes from the EIA process before starting. Board consent covers discharge and emissions and is needed to establish and operate.

  • Writing a theory answer without applying it to the facts.

    Students memorise notes and skip the analysis.

    Fix: Use provision, facts, conclusion. Quote one or two facts from the case in your analysis.

  • Quoting section numbers or penalties from memory.

    Students try to look more precise.

    Fix: Use section numbers and amounts only if you are certain. A correct rule in words earns marks; a wrong number does not.

  • Forgetting the principles the NGT uses.

    Students focus on the statutes and skip the doctrines.

    Fix: Always mention sustainable development, the precautionary principle and polluter pays when discussing NGT or liability.

Worked examples

Example 1

Sundaram Chemicals Ltd plans a new plant in Gujarat and wants to start production immediately after construction. It has not approached the State Pollution Control Board. Advise the company.

Show the solution
  1. Provision: The Water Act, 1974 and the Air Act, 1981 require an industry to obtain the SPCB's consent to establish and consent to operate before discharging effluents or emitting pollutants.
  2. Facts: The plant is new, it will release industrial effluents and emissions, and no consent has been sought.
  3. Analysis: The company should apply to the SPCB for consent to establish before construction and for consent to operate before production. If the plant is a listed project under the EIA Notification, 2006, it must also get prior environmental clearance before starting work.
  4. Consequence: Operating without consent can lead to closure directions, prosecution and penalties, and possible claims before the NGT for compensation and restoration.
  5. Compliance point: The company secretary should prepare a compliance calendar for consents, renewals and returns.

Answer: Sundaram Chemicals must not start production without SPCB consent. It should obtain consent to establish and consent to operate, and prior environmental clearance if the project is covered under the EIA Notification, 2006.

Example 2

Explain the role of the National Green Tribunal and how a community affected by industrial pollution can use it.

Show the solution
  1. Provision: The NGT was established under the National Green Tribunal Act, 2010 for quick disposal of environmental cases.
  2. Jurisdiction: It hears civil cases involving a substantial environmental question arising under the listed Acts, such as the Water Act, Air Act and Environment (Protection) Act.
  3. Powers: It can order relief and compensation to victims, restitution of damaged environment and other remedies. It is not bound by the strict procedure of the Code of Civil Procedure and is guided by natural justice.
  4. Principles: It applies sustainable development, the precautionary principle and the polluter pays principle.
  5. Application: An affected community can file an application before the NGT seeking compensation, restoration and directions to stop the polluting activity.
  6. Appeal: A person unhappy with the NGT's order can appeal to the Supreme Court.

Answer: The NGT is a specialised forum for environmental disputes. A community can apply to it for compensation, restoration and directions against a polluter, and any appeal goes to the Supreme Court.

Exam tips

  • Learn the one-line purpose of each Act so you can separate them quickly in a comparison question.
  • For case-based questions, follow provision, facts, conclusion. Examiners reward application over lists.
  • Memorise the EIA stages in order and be able to say which is a public step: public consultation.
  • Link the topic to the company secretary's role: compliance tracking, consents, disclosures and board reporting.
  • Avoid quoting section numbers and penalty figures unless you are certain.

Practice questions from Environment

Environmental Laws and Regulation in India in other exams

The same ground in other exams, if you are preparing for more than one or want another angle on it.

Environmental Laws and Regulation in India: frequently asked questions

What is the Environment Protection Act, 1986 in short?

It is the umbrella environmental law of India, enacted after the Bhopal gas tragedy. It gives the Central Government wide powers to set standards, restrict industries and issue directions. Many rules, such as those on hazardous waste and EIA, are made under it.

What is the difference between the Water Act and the Air Act?

The Water Act, 1974 deals with prevention and control of water pollution. The Air Act, 1981 deals with air pollution. Both set up pollution control boards and require industries to obtain the board's consent.

What is an EIA and when is it needed?

An Environmental Impact Assessment studies a project's likely effects on the environment before it starts. Under the EIA Notification, 2006, listed projects need prior environmental clearance. The process includes screening, scoping, public consultation and appraisal.

What are the powers of the National Green Tribunal?

The NGT hears civil cases on substantial environmental questions under the listed Acts. It can order compensation, restoration and other relief, and follows principles like polluter pays and the precautionary principle. Appeals go to the Supreme Court.