Environmental Laws and Bodies in India: Acts and PYQs
Environmental laws of India for exams: Articles 48A and 51A, the Acts of 1972 to 2010, pollution boards, the NGT, court principles and global conventions.
By GK24 Editorial Team· Published · 5 min read

India's environmental law is built out of a handful of Acts, a set of statutory bodies and a line of Supreme Court judgments, and examiners test all three. The questions are almost always about a year, a full name or the Act under which a body was set up, so this note fixes each Act with its date and purpose, each body with its parent Act and headquarters, and the international conventions India has joined.
The constitutional base
The Constitution originally said nothing about the environment. The Forty-second Amendment of 1976 inserted Article 48A, a directive principle under which the state shall endeavour to protect and improve the environment and safeguard the forests and wildlife of the country, and Article 51A, clause g, a fundamental duty of every citizen to do the same. The Supreme Court has also read the right to a clean and healthy environment into the right to life under Article 21, which is why environmental cases can be brought as writ petitions. Forests and the protection of wild animals and birds were moved from the State List to the Concurrent List by the same amendment.
The major environmental Acts
| Act | Year | What it does |
|---|---|---|
| Indian Forest Act | 1927 | Classifies reserved, protected and village forests |
| Wildlife (Protection) Act | 1972 | Protects species by schedules and creates protected areas |
| Water (Prevention and Control of Pollution) Act | 1974 | Creates the Central and State Pollution Control Boards |
| Forest (Conservation) Act | 1980 | Requires central approval to divert forest land |
| Air (Prevention and Control of Pollution) Act | 1981 | Extends the Boards' work to air quality |
| Environment (Protection) Act | 1986 | The umbrella law passed after the Bhopal disaster |
| Biological Diversity Act | 2002 | Sets up the National Biodiversity Authority |
| Forest Rights Act | 2006 | Recognises the rights of forest dwelling communities |
| National Green Tribunal Act | 2010 | Creates a specialised environmental tribunal |
The Environment (Protection) Act of 1986 is the one to know best. It was passed in the aftermath of the Bhopal gas tragedy of December 1984 and is called an umbrella legislation because it gives the central government wide power to make rules on any matter concerning the environment. The rules on hazardous waste, on noise, on plastic waste, on e-waste and the notification requiring environmental impact assessment for new projects are all made under it. The Public Liability Insurance Act of 1991, which requires industries handling hazardous substances to insure against accidents, came from the same experience.
The bodies that enforce the law
The Ministry of Environment, Forest and Climate Change is the nodal ministry. The Central Pollution Control Board was constituted in 1974 under the Water Act and works with the State Pollution Control Boards, which lay down and enforce standards for effluents and emissions. The National Green Tribunal was established in 2010 under its own Act to decide environmental cases quickly; its principal bench sits in New Delhi, its zonal benches in Bhopal, Pune, Kolkata and Chennai, it is headed by a retired judge of the Supreme Court, and it is expected to dispose of an application within six months, with an appeal lying to the Supreme Court. The National Biodiversity Authority, set up under the Act of 2002, has its headquarters at Chennai and works through State Biodiversity Boards and local Biodiversity Management Committees. Other bodies worth remembering are the National Tiger Conservation Authority, the Wildlife Crime Control Bureau, the Central Zoo Authority, the Animal Welfare Board of India, and the three old survey organisations: the Botanical Survey of India and the Zoological Survey of India, both headquartered at Kolkata, and the Forest Survey of India at Dehradun, which publishes the India State of Forest Report every two years.
Principles the courts apply
Four ideas run through Indian environmental judgments. The polluter pays principle makes the party causing the damage bear the cost of repairing it. The precautionary principle says that where serious harm is likely, the lack of full scientific certainty is not a reason to postpone action, and it shifts the burden of proof to the developer. Sustainable development, taken from the Brundtland report of 1987, asks that present needs be met without compromising the ability of future generations to meet theirs. The public trust doctrine treats air, water, forests and the seashore as resources the state holds in trust for the people. To these the Supreme Court added the rule of absolute liability in the case arising from the oleum gas leak in Delhi in 1986, under which an enterprise carrying on a hazardous activity is liable for harm without any exception.
International conventions India has joined
The United Nations Conference on the Human Environment at Stockholm in 1972 is the starting point; the United Nations Environment Programme was created in the same year with its headquarters at Nairobi, and 5 June is observed as World Environment Day. The Ramsar Convention of 1971, signed in Iran, protects wetlands. CITES, agreed in 1973, controls international trade in endangered species. The Vienna Convention of 1985 and the Montreal Protocol of 1987 deal with substances that deplete the ozone layer, and 16 September is World Ozone Day. The Basel Convention of 1989 covers the movement of hazardous waste, and the Stockholm Convention of 2001 covers persistent organic pollutants. The Earth Summit at Rio in 1992 produced the Convention on Biological Diversity, with the Cartagena Protocol on biosafety and the Nagoya Protocol on access and benefit sharing, and the Framework Convention on Climate Change, under which the Kyoto Protocol of 1997 and the Paris Agreement of 2015 were adopted. The International Union for Conservation of Nature, founded in 1948 and based in Switzerland, is not a treaty body but maintains the Red List of threatened species.
Exam Point of View
Questions from this topic take four shapes. First, the year of an Act: 1972 for wildlife, 1974 for water, 1980 for forest conservation, 1981 for air, 1986 for the umbrella Act, 2002 for biodiversity and 2010 for the tribunal. Second, the body and its parent law or headquarters: the Central Pollution Control Board under the Water Act, the National Biodiversity Authority at Chennai, the Forest Survey of India at Dehradun, the National Green Tribunal at New Delhi. Third, the constitutional provisions, where the pair of Article 48A and Article 51A, clause g, and the Forty-second Amendment are asked together. Fourth, conventions and their subjects: Ramsar for wetlands, CITES for trade, Montreal for ozone, Basel for hazardous waste, Stockholm for persistent organic pollutants, Kyoto and Paris for climate. The commonest traps are dating the Environment Protection Act to 1984, the year of the accident rather than the Act, and putting the National Biodiversity Authority in Delhi instead of Chennai.
Important Facts
| Constitutional articles | 48A, a directive principle, and 51A(g), a fundamental duty, added in 1976 |
|---|---|
| Amendment that added them | The Forty-second Amendment Act, 1976 |
| Umbrella law | The Environment (Protection) Act, 1986 |
| Trigger for the 1986 Act | The Bhopal gas tragedy of December 1984 |
| Pollution boards | CPCB and the SPCBs, constituted under the Water Act, 1974 |
| National Green Tribunal | Established in 2010; principal bench New Delhi; headed by a retired Supreme Court judge |
| NGT zonal benches | Bhopal, Pune, Kolkata and Chennai |
| National Biodiversity Authority | Set up under the Biological Diversity Act, 2002; headquarters Chennai |
| India State of Forest Report | Published every two years by the Forest Survey of India, Dehradun |
| Red List | Maintained by the International Union for Conservation of Nature |
| World Environment Day | 5 June, from the Stockholm Conference of 1972 |
| Ozone treaties | Vienna Convention 1985 and Montreal Protocol 1987 |
| Wetlands treaty | The Ramsar Convention, 1971 |
| Climate treaties | UNFCCC 1992, Kyoto Protocol 1997, Paris Agreement 2015 |
Practice MCQs on this topic
One of India's worst industrial disasters of all time occurred in Bhopal on December 1984, in which of the following factories?
- A.Exide
- B.Bharat Rasayan Limited
- C.Union Carbide
- D.UPL Limited
Show answer
Correct answer: C. Union Carbide
Explanation
The correct answer is C, Union Carbide. On the night of 2 and 3 December 1984, methyl isocyanate gas leaked from the pesticide plant of Union Carbide India Limited at Bhopal in Madhya Pradesh, killing thousands of people and injuring many more. The disaster directly led Parliament to pass the Environment (Protection) Act in 1986 and later the Public Liability Insurance Act of 1991.
Option A, Exide, is a battery manufacturer and had no plant involved in the leak. Option B, Bharat Rasayan Limited, is an agrochemical company but is unconnected with Bhopal. Option D, UPL Limited, is another agrochemical firm and is likewise unrelated to the tragedy. For the examination, remember the chain: Union Carbide, methyl isocyanate, Bhopal, December 1984, and the Environment (Protection) Act of 1986 that followed it.
The Red Data book which lists endangered species is maintained -
- A.UNO
- B.IUCN
- C.WHO
- D.WWF
Show answer
Correct answer: B. IUCN
Explanation
The correct answer is B, IUCN, the International Union for Conservation of Nature. Founded in 1948 and based in Switzerland, it maintains the Red List of Threatened Species, which grades species as least concern, near threatened, vulnerable, endangered, critically endangered, extinct in the wild or extinct. It is the standard reference used by governments and by examiners.
Option A, the United Nations Organisation, is the parent body of many agencies but does not itself compile the list; its environment arm, the United Nations Environment Programme, works with IUCN rather than replacing it. Option C, the World Health Organisation, deals with human health and disease. Option D, the World Wide Fund for Nature, is a conservation organisation known for its panda emblem and for the Living Planet Report, and it is the commonest wrong choice here because it works in the same field, but the Red List belongs to IUCN.
The Stockholm Convention on Persistent Organic Pollutants (POPs) was signed in the year-
- A.2000
- B.2001
- C.1998
- D.1999
Show answer
Correct answer: B. 2001
Explanation
The correct answer is B, 2001. The Stockholm Convention was adopted in 2001 and came into force in 2004. It aims to eliminate or restrict persistent organic pollutants, chemicals such as some pesticides and industrial compounds that resist breaking down, travel long distances, accumulate in fatty tissue and harm human health; the original list was known as the dirty dozen. India is a party to the convention.
Option A, 2000, is the year of the Cartagena Protocol on biosafety, made under the Convention on Biological Diversity, and is easy to confuse. Option C, 1998, is the year of the Rotterdam Convention on prior informed consent for hazardous chemicals in trade, which is a related but separate treaty. Option D, 1999, has no major chemical convention attached to it. The chemical trio worth memorising is Basel in 1989 on hazardous waste, Rotterdam in 1998 on trade in chemicals, and Stockholm in 2001 on persistent organic pollutants.
National Clean Air Programme was launched by the Central Government in which year?
- A.2018
- B.2017
- C.2020
- D.2019
Show answer
Correct answer: D. 2019
Explanation
The correct answer is D, 2019. The National Clean Air Programme was launched by the Ministry of Environment, Forest and Climate Change in January 2019 as a national framework to cut particulate pollution in cities that do not meet the national ambient air quality standards. It works city by city, through action plans prepared with the State Pollution Control Boards and monitored by the Central Pollution Control Board.
Option A, 2018, is the year the draft of the programme was put out for comments, which is why it is the most tempting wrong answer. Option B, 2017, predates the proposal altogether. Option C, 2020, is later than the launch and is sometimes confused with the creation of the Commission for Air Quality Management for the national capital region, which came afterwards. Remember 2019 for the programme, and remember that its legal backing comes from the Air Act of 1981 and the Environment (Protection) Act of 1986.
The Environment (Protection) Act, often described as an umbrella legislation, was enacted in which year?
- A.1974
- B.1981
- C.1986
- D.1991
Show answer
Correct answer: C. 1986
Explanation
The correct answer is C, 1986. The Act was passed in the wake of the Bhopal gas tragedy and gives the central government a general power to take any measure it considers necessary to protect and improve the quality of the environment. Because so many rules are framed under it, on hazardous waste, noise, plastic waste, electronic waste and environmental impact assessment, it is called an umbrella legislation.
Option A, 1974, is the year of the Water (Prevention and Control of Pollution) Act, which created the pollution control boards. Option B, 1981, is the year of the Air (Prevention and Control of Pollution) Act, which extended the work of those boards to air quality. Option D, 1991, is the year of the Public Liability Insurance Act, which requires industries handling hazardous substances to carry insurance for accident victims. The trap in this question is to answer 1984, the year of the accident rather than of the Act.
The National Green Tribunal was established under an Act of which year?
- A.1995
- B.2006
- C.2010
- D.2016
Show answer
Correct answer: C. 2010
Explanation
The correct answer is C, 2010. The National Green Tribunal Act was passed in 2010 and the tribunal began work in the same year, to provide quick and specialised disposal of cases on environmental protection and forest conservation. Its principal bench is at New Delhi, it has zonal benches at Bhopal, Pune, Kolkata and Chennai, and it is headed by a retired judge of the Supreme Court.
Option A, 1995, is the year of the National Environment Tribunal Act, an earlier attempt that never really functioned and was superseded by the 2010 Act. Option B, 2006, is the year of the Forest Rights Act and also of the amendment that made the National Tiger Conservation Authority statutory. Option D, 2016, is the year of the Compensatory Afforestation Fund Act. Only 2010 belongs to the tribunal, and the tribunal's decisions are appealable to the Supreme Court.
The Central Pollution Control Board was constituted under which Act?
- A.The Air (Prevention and Control of Pollution) Act, 1981
- B.The Water (Prevention and Control of Pollution) Act, 1974
- C.The Environment (Protection) Act, 1986
- D.The Factories Act, 1948
Show answer
Correct answer: B. The Water (Prevention and Control of Pollution) Act, 1974
Explanation
The correct answer is B, the Water (Prevention and Control of Pollution) Act, 1974. The Board was created by that Act to advise the central government, to lay down standards for effluents and to coordinate the work of the State Pollution Control Boards, which were set up by the same law in the states.
Option A, the Air Act of 1981, did not create the Board; it entrusted the existing Board with additional functions relating to air quality, which is exactly why this option is the popular wrong answer. Option C, the Environment (Protection) Act of 1986, is the umbrella law under which most environmental rules are framed, but the Board predates it by twelve years. Option D, the Factories Act of 1948, deals with the safety, health and working conditions of factory workers and creates inspectorates, not pollution boards. The pairing to remember is Water Act 1974 with the Boards, Air Act 1981 with their extra duties.
The National Biodiversity Authority has its headquarters at
- A.New Delhi
- B.Chennai
- C.Dehradun
- D.Hyderabad
Show answer
Correct answer: B. Chennai
Explanation
The correct answer is B, Chennai. The Authority was set up under the Biological Diversity Act of 2002 and is based at Chennai in Tamil Nadu. It regulates access to India's biological resources and the sharing of benefits arising from their use, and it works through State Biodiversity Boards and Biodiversity Management Committees at the local level.
Option A, New Delhi, is where the ministry and the principal bench of the National Green Tribunal sit, and candidates often assume every national authority must be there. Option C, Dehradun, is the headquarters of the Forest Survey of India, of the Wildlife Institute of India and of the Indian Council of Forestry Research and Education, so it belongs to a different set of bodies. Option D, Hyderabad, hosted the eleventh Conference of the Parties to the Convention on Biological Diversity in 2012, which is why it appears here as a distractor, but it is not the seat of the Authority.
Article 48A and Article 51A, clause g, relating to the protection of the environment, were inserted by which constitutional amendment?
- A.The Forty-second Amendment, 1976
- B.The Forty-fourth Amendment, 1978
- C.The Seventy-third Amendment, 1992
- D.The Eighty-sixth Amendment, 2002
Show answer
Correct answer: A. The Forty-second Amendment, 1976
Explanation
The correct answer is A, the Forty-second Amendment of 1976. It added Article 48A to the directive principles, asking the state to protect and improve the environment and to safeguard forests and wildlife, and Article 51A, clause g, to the fundamental duties, laying the same obligation on every citizen. The same amendment also shifted forests and the protection of wild animals and birds from the State List to the Concurrent List.
Option B, the Forty-fourth Amendment of 1978, undid several changes of the emergency period and removed the right to property from the fundamental rights. Option C, the Seventy-third Amendment of 1992, gave constitutional status to panchayats. Option D, the Eighty-sixth Amendment of 2002, made elementary education a fundamental right under Article 21A. Only the Forty-second Amendment carries the environmental provisions, and it is also the amendment that introduced the fundamental duties in the first place.
The Ramsar Convention is concerned with the conservation of
- A.wetlands
- B.tropical forests
- C.the ozone layer
- D.migratory whales
Show answer
Correct answer: A. wetlands
Explanation
The correct answer is A, wetlands. The convention was signed in 1971 at Ramsar, a town in Iran, and is the oldest of the modern global conservation treaties. Wetlands listed under it are called Ramsar sites, and countries that are parties undertake to use them wisely and to maintain their ecological character.
Option B, tropical forests, is dealt with by other instruments, chiefly the Convention on Biological Diversity and the forest related work under the climate convention. Option C, the ozone layer, is the subject of the Vienna Convention of 1985 and the Montreal Protocol of 1987. Option D, migratory whales, falls under the International Whaling Commission, while migratory species in general are covered by the Bonn Convention of 1979. The one word to attach to Ramsar is wetlands, and the year to attach to it is 1971.
The Montreal Protocol of 1987 deals with
- A.greenhouse gas emissions
- B.substances that deplete the ozone layer
- C.transboundary movement of hazardous waste
- D.trade in endangered species
Show answer
Correct answer: B. substances that deplete the ozone layer
Explanation
The correct answer is B, substances that deplete the ozone layer. The Montreal Protocol was adopted under the Vienna Convention of 1985 and sets a timetable for phasing out chlorofluorocarbons, halons and similar chemicals. It is often described as the most successful environmental treaty, and 16 September is observed as the International Day for the Preservation of the Ozone Layer.
Option A, greenhouse gases, belongs to the climate regime: the Framework Convention of 1992, the Kyoto Protocol of 1997 and the Paris Agreement of 2015. Option C, hazardous waste moving across borders, is the subject of the Basel Convention of 1989. Option D, trade in endangered species, is covered by CITES, agreed in 1973. Candidates lose this mark by confusing Montreal with Kyoto, so fix the pair firmly: Montreal for ozone, Kyoto for climate.
The India State of Forest Report is published by which organisation?
- A.Central Pollution Control Board
- B.Forest Survey of India
- C.Botanical Survey of India
- D.Indian Council of Forestry Research and Education
Show answer
Correct answer: B. Forest Survey of India
Explanation
The correct answer is B, the Forest Survey of India. Set up in 1981 and based at Dehradun, it assesses the country's forest and tree cover from satellite data and brings out the India State of Forest Report once every two years, giving the cover state by state and by density class.
Option A, the Central Pollution Control Board, monitors air and water quality and publishes air quality data, not forest cover. Option C, the Botanical Survey of India, founded in 1890 and headquartered at Kolkata, surveys the plant wealth of the country and publishes floras, which is close in subject but different in task. Option D, the Indian Council of Forestry Research and Education, also at Dehradun, coordinates research and education in forestry rather than the national assessment of cover. The pairing to remember is Forest Survey of India, Dehradun, and the biennial report.
Frequently Asked Questions
Why is the Environment (Protection) Act, 1986 called an umbrella legislation?
Because it does not deal with one pollutant or one medium but gives the central government a general power to take all measures it thinks necessary to protect and improve the environment. The rules on hazardous waste, noise, plastic waste, e-waste and environmental impact assessment are all issued under it.
Which amendment added the environment to the Constitution?
The Forty-second Amendment Act of 1976. It inserted Article 48A, a directive principle asking the state to protect the environment, forests and wildlife, and Article 51A, clause g, making it a fundamental duty of citizens to do the same. The same amendment moved forests and wildlife to the Concurrent List.
What is the National Green Tribunal and where does it sit?
It is a specialised tribunal set up under the National Green Tribunal Act of 2010 to decide cases on environmental protection and forest conservation. Its principal bench is at New Delhi and its zonal benches at Bhopal, Pune, Kolkata and Chennai. It is chaired by a retired judge of the Supreme Court and an appeal from it lies to the Supreme Court.
What does the polluter pays principle mean?
That the cost of preventing pollution and of repairing the damage it causes must be borne by the person or the industry responsible for it, and not by the state or the affected community. Indian courts have applied it to order industries to pay for restoring polluted land and water.
Which convention deals with wetlands and which with ozone?
The Ramsar Convention, signed at Ramsar in Iran in 1971, deals with the conservation of wetlands, and sites listed under it are called Ramsar sites. The ozone layer is covered by the Vienna Convention of 1985 and its Montreal Protocol of 1987, which phases out ozone depleting substances such as chlorofluorocarbons.
Which body maintains the Red List of threatened species?
The International Union for Conservation of Nature, founded in 1948 and based in Switzerland. Its Red List grades species from least concern through vulnerable and endangered to critically endangered, extinct in the wild and extinct.
Sources
- The Constitution of India, Articles 21, 48A and 51A — Ministry of Law and Justice, Government of India
- Environmental Acts and Rules: Water Act 1974, Air Act 1981, Environment (Protection) Act 1986 — Ministry of Environment, Forest and Climate Change
- About the National Green Tribunal: jurisdiction, benches and procedure — National Green Tribunal
- Functions of the Central Pollution Control Board under the Water and Air Acts — Central Pollution Control Board
- Multilateral environmental agreements: Ramsar, CITES, Montreal, Basel, Stockholm and the Rio conventions — United Nations Environment Programme





