The National Green Tribunal (NGT) of India Explained

The National Green Tribunal is India’s specialised “green court”, a statutory judicial body set up to hear environmental disputes quickly and with the help of scientific expertise. Created under the National Green Tribunal Act, 2010, it deals with cases relating to environmental protection, the conservation of forests and other natural resources, and the enforcement of legal rights connected with the environment. India is among the few countries in the world to have such a dedicated environmental tribunal.

What makes the Tribunal distinctive is its mix of judges and scientists, its mandate to decide matters within months rather than years, and its readiness to apply principles such as sustainable development, the precautionary principle and “polluter pays”. This explainer walks through why it was created, how it is composed, what it can and cannot do, its best-known orders, and the criticisms it has attracted. 1 October 2026

Quick Facts

What Is the National Green Tribunal?

The Tribunal is a specialised forum with the legal authority to decide civil cases that raise a “substantial question relating to the environment”. Its founding statute describes its purpose as the effective and expeditious disposal of cases relating to environmental protection, the conservation of forests and other natural resources, the enforcement of any legal right relating to the environment, and the giving of relief and compensation for damage to persons and property.

Why it is called a “green court”

Ordinary courts handle every kind of dispute, from property to crime. Environmental cases, however, often turn on technical questions about effluents, emissions, ecosystems and carrying capacity. The Tribunal brings judges and technical experts onto the same bench so that law and science are weighed together in a single order.

A rare institution worldwide

When it was set up, India became only the third country in the world, after Australia and New Zealand, to establish a body of this kind, and the first developing country to do so. Since then, several other nations have experimented with environmental courts, but the Indian model, with its mandatory expert members, remains unusual.

Background: Why India Needed an Environmental Tribunal

The Tribunal did not appear out of nowhere. It is the end point of several decades of growing environmental law and judicial activism.

Constitutional and international roots

• Article 21: The Supreme Court has repeatedly read the right to life as including the right to a healthy and pollution-free environment. The Tribunal Act itself refers to this.
• Directive Principle (Article 48A) and Fundamental Duty (Article 51A(g)): The State is to protect and improve the environment, and every citizen has a duty to protect the natural environment.
• Stockholm Declaration (1972): The UN Conference on the Human Environment, in which India participated, pushed countries to build domestic environmental law. India’s Water Act of 1974 and the later Environment (Protection) Act of 1986 followed.
• Rio Declaration (1992): The Earth Summit endorsed principles such as sustainable development, precaution and polluter pays, and called for effective access to judicial and administrative remedies for environmental damage.

Crowded courts and a need for expertise

By the 1990s, High Courts and the Supreme Court were hearing a large number of environmental petitions, many through public interest litigation. The Supreme Court itself observed in several cases that environmental matters needed specialised handling, with technical inputs. Cases dragged on, and judges often had to rely on outside committees for scientific advice.

The earlier, short-lived tribunals

India had tried specialised bodies before. The National Environment Tribunal Act, 1995 envisaged a tribunal to award compensation for accidents involving hazardous substances, but it was never effectively brought into operation. The National Environment Appellate Authority Act, 1997 created an authority to hear appeals against environmental clearances, but its reach was narrow and its working limited. The Law Commission of India, in its 186th Report (2003), recommended a proper system of environmental courts that included technical experts. This line of thinking eventually produced the National Green Tribunal Act, which received Presidential assent in 2010, and the Tribunal began functioning in October of that year.

Composition: Judges and Scientists on One Bench

The most distinctive feature of the Tribunal is the combination of legal and scientific expertise.

Chairperson

The Chairperson is a sitting or retired Judge of the Supreme Court, or a retired Chief Justice of a High Court, appointed by the Central Government in consultation with the Chief Justice of India. The Chairperson presides over the Principal Bench and guides the administration of the Tribunal.

Judicial Members

These are present or former Judges of a High Court. They bring legal reasoning, procedure and constitutional understanding to the bench.

Expert Members

Expert Members are persons with high-level knowledge and practical experience in the physical sciences, life sciences, engineering or environmental management, or with long experience in administration dealing with environmental issues. They are not mere advisers; they sit on the bench, hear the arguments and sign the final order along with the Judicial Members.

Strength, tenure and sitting pattern

• The Act provides for a Chairperson plus full-time Judicial and Expert Members, with a defined minimum and maximum number of members.
• Members are appointed through a selection committee, and hold office for a fixed term without reappointment.
• A bench normally consists of at least one Judicial Member and at least one Expert Member, so that every decision carries both perspectives.

Benches and Territorial Reach

Environmental disputes arise across a large country, so the Tribunal works through a Principal Bench and regional benches rather than from a single location. The Principal Bench sits in New Delhi, while four zonal benches serve different regions. In addition, the Tribunal has held circuit sittings in places such as Shimla, Shillong, Jodhpur and Kochi to bring justice closer to litigants.

The exact distribution of States among benches has been set by Central Government notifications and may be adjusted over time, so litigants should always check the current notification.

Jurisdiction: Seven Laws and a “Substantial Question”

The Tribunal’s power to hear cases comes from the Act. It has original jurisdiction over all civil cases in which a substantial question relating to the environment (including enforcement of any legal right relating to the environment) arises, and where that question comes from the implementation of the laws listed in a Schedule to the Act.

The seven scheduled laws

• The Water (Prevention and Control of Pollution) Act, 1974
• The Water (Prevention and Control of Pollution) Cess Act, 1977
• The Forest (Conservation) Act, 1980
• The Air (Prevention and Control of Pollution) Act, 1981
• The Environment (Protection) Act, 1986
• The Public Liability Insurance Act, 1991
• The Biological Diversity Act, 2002

What this means in practice

The Tribunal can hear challenges to the grant of environmental clearances, disputes over forest diversion, complaints about industrial pollution and cases about damage to rivers, wetlands and air quality. It also hears appeals against certain orders passed by pollution control boards and other authorities under these laws.

What it does not cover

The Wildlife (Protection) Act, 1972 and the Indian Forest Act, 1927 are not among the scheduled laws, and several State-level tree-protection and land laws also lie outside its direct reach. The Tribunal also cannot try criminal cases as such, although it can order penalties for non-compliance with its own directions. Cases on these subjects continue to be heard by High Courts and the Supreme Court.

Powers, Procedure and the Six-Month Target

The Tribunal was designed to be quicker and more flexible than a regular civil court.

Procedure guided by natural justice

The Tribunal is not bound by the Code of Civil Procedure, 1908 or by the strict rules of the Indian Evidence Act, 1872. Instead, it is guided by principles of natural justice, such as hearing both sides and giving reasoned decisions. This allows it to receive scientific reports, order site inspections and appoint expert committees without the delays of formal trial procedure.

Relief, compensation and restoration

Under the Act, the Tribunal can:

• order relief and compensation to victims of pollution and other environmental damage, including death or injury to persons;
• direct restitution of damaged property;
• direct restitution or restoration of the environment of an affected area, for example by cleaning up a polluted site;
• pass interim orders, including stay orders and injunctions, to prevent harm while a case is pending;
• order the person responsible for pollution to bear the costs of remediation.

Time limits

The Act requires the Tribunal to try to dispose of an application or appeal finally within six months of its filing. In practice, a large caseload has often stretched this target, but the statutory expectation of speed remains a defining feature. Applications for compensation can generally be made within five years of the cause of action, while other applications must usually be filed within six months, with limited scope for extension.

Enforcing its own orders

Orders of the Tribunal are executable as decrees of a civil court. Failing to comply can attract imprisonment of up to three years, a heavy fine, or both, under the Act.

Guiding Principles of Environmental Justice

The Act directs the Tribunal to apply three well-known principles when deciding cases. All three had already been recognised by the Supreme Court in earlier decisions, and the Act gave them clear statutory backing.

The Supreme Court’s decisions in cases such as Vellore Citizens’ Welfare Forum (1996) and Indian Council for Enviro-Legal Action (1996) had already built the foundation for the precautionary and polluter-pays principles in Indian law. The Tribunal’s contribution has been to apply them regularly in everyday decisions on clearances and pollution.

Landmark Orders and Directions

Over the years, the Tribunal has passed many significant orders. The following are some of the best-known examples, described in broad terms.

Air pollution and old diesel vehicles in Delhi-NCR

In 2015, the Tribunal directed that diesel vehicles older than ten years should not ply in Delhi and the National Capital Region, as part of efforts to reduce vehicular emissions. This direction became one of the most widely discussed environmental orders in the country and was later considered by the Supreme Court in related proceedings.

Cleaning the Ganga and the Yamuna

The Tribunal took up the pollution of the Ganga through a series of orders, directing authorities to control the discharge of untreated sewage and industrial effluents, regulate activities near the river and fix responsibility on local bodies and pollution control boards. In the matter of the Yamuna, it passed directions on rejuvenation and floodplain protection. In 2016, it imposed an environmental compensation of five crore rupees on an organisation for a large cultural event held on the Yamuna floodplain.

Ban on open waste burning

The Tribunal has prohibited the open burning of garbage, leaves and other waste in Delhi-NCR and elsewhere, and has linked this to penalties on those who violate the ban. It has also issued directions on stubble burning and municipal solid waste management.

Penalties on polluters

By applying polluter pays, the Tribunal has imposed environmental compensation on industrial units, builders and civic agencies for illegal discharge, unauthorised construction and mining, and violation of environmental clearance conditions. These cases showed that environmental harm can carry real financial cost.

Appeals, Suo Motu Powers and the Role of Higher Courts

The Tribunal is not the final word on environmental law.

Appeal to the Supreme Court

Any person aggrieved by an award, decision or order of the Tribunal can appeal to the Supreme Court within ninety days, a period the Supreme Court may extend for sufficient cause. Civil courts, on the other hand, are barred from hearing matters that fall within the Tribunal’s jurisdiction. Courts have also examined whether the constitutional writ powers of the High Courts under Articles 226 and 227 remain available in relation to Tribunal orders, and have held that these constitutional powers cannot be taken away entirely by statute.

The suo motu question

The Act does not expressly spell out a power to take up matters on its own, without a petition. Even so, the Tribunal has sometimes taken cognisance of environmental issues on its own, often based on newspaper reports. The question of whether it could do so was examined by the Supreme Court, which, in a 2021 decision, recognised that the Tribunal has suo motu powers as part of its role in protecting the environment, while stressing that the power must be exercised with care and within the framework of the Act.

Criticisms and Challenges

Like any young institution, the Tribunal has faced criticism alongside praise. Some of the commonly raised concerns are:

• Vacancies: Posts of Judicial and Expert Members have at times remained unfilled, and some benches have functioned with a thin strength or have had difficulty sitting at all. This hampers the six-month target and slows disposal.
• Non-functional benches: Because a bench needs both a Judicial and an Expert Member, a single vacancy can leave a regional bench unable to hear cases, forcing litigants to travel or wait.
• Limited enforcement: Orders on cleaning rivers or controlling pollution depend on State governments and local bodies, and implementation has often lagged behind the directions.
• Jurisdictional tussles: Questions have arisen about the limits of its authority, the overlap with High Courts and the Supreme Court, and the exclusion of laws like the Wildlife (Protection) Act from its scope.
• Suo motu concerns: Critics have asked whether a tribunal created by statute should be taking up matters on its own, a question that the courts have examined.
• Expert appointments and independence: Debates have taken place about the qualifications, selection process and tenure of members, and about the executive’s role in appointments.
• Access and cost: Reaching a bench can be difficult and costly for affected villagers and small groups, even though the law was meant to make access to justice easier.

Impact on Environmental Governance

Whatever its limits, the Tribunal has changed how environmental decisions are made in India. It has given citizens, communities and civil-society groups a dedicated place to challenge projects and pollution without always going to the High Courts or the Supreme Court. Its reasoned orders, often supported by expert committee reports, have pushed regulators and pollution control boards to be more careful about clearances and compliance.

The Tribunal has also helped to mainstream principles such as precaution and polluter pays in routine decision-making, and has encouraged project developers to treat environmental review as a serious step rather than a formality. Its experience also offers a model for other countries considering a specialised environmental court.

Conclusion

The National Green Tribunal represents an attempt to combine law and science in the service of the environment. Born from the constitutional promise of a healthy environment, India’s international commitments and the limits of earlier arrangements, it offers a specialised, fast-moving forum with the power to grant relief, order restoration and impose costs on polluters. Its effectiveness depends on adequate staffing, working benches and real implementation of its orders by the authorities concerned. As environmental challenges grow, the Tribunal remains one of the most important institutions in India’s environmental governance.

Frequently Asked Questions

What is the National Green Tribunal?

It is a specialised statutory tribunal established under the National Green Tribunal Act, 2010 to hear environmental cases quickly. It handles disputes on pollution, forest conservation and biodiversity, and can order compensation, relief and restoration of damaged environments.

When was the NGT established and where does it sit?

The Tribunal was established on 18 October 2010. Its Principal Bench is in New Delhi, and it has zonal benches at Bhopal, Pune, Kolkata and Chennai, along with circuit sittings in some other locations.

Who are the members of the Tribunal?

The Tribunal is headed by a Chairperson, who is a retired Supreme Court judge or a retired Chief Justice of a High Court. It also includes Judicial Members, who are High Court judges, and Expert Members with scientific, technical or environmental experience.

Which laws fall under its jurisdiction?

It hears civil cases involving a substantial environmental question under seven laws: the Water Act, the Water Cess Act, the Forest (Conservation) Act, the Air Act, the Environment (Protection) Act, the Public Liability Insurance Act and the Biological Diversity Act. The Wildlife (Protection) Act, 1972 is not among them.

How quickly must the Tribunal decide a case?

The Act requires the Tribunal to try to dispose of an application or appeal within six months of filing. In practice, heavy caseloads and vacancies have sometimes delayed this, but speedy disposal remains its central purpose.

Can the NGT’s decisions be challenged?

Yes. An appeal against its order lies to the Supreme Court within ninety days, which may be extended for sufficient cause. Courts have also held that the constitutional writ jurisdiction of the High Courts is not completely taken away.

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