Key Environmental Laws in India

1.1 Umbrella Legislation

LawYearKey Provisions
Environment (Protection) Act (EPA)1986Umbrella legislation enacted after the Bhopal Gas Tragedy (1984); empowers Central Government to take measures for environmental protection; power to set standards for emissions/discharges; prohibit or regulate industrial activities in environmentally sensitive areas; amended through Jan Vishwas Act, 2023 (decriminalised certain offences, replaced with monetary penalties effective 1 April 2024)

1.2 Pollution Control Laws

LawYearKey Provisions
Water (Prevention and Control of Pollution) Act1974First major environmental law in India; established Central Pollution Control Board (CPCB) and State Pollution Control Boards (SPCBs); regulates discharge of pollutants into water bodies; requires consent for establishing/operating polluting industries
Water Cess Act1977Levies cess on water consumed by industries; revenue used to fund CPCB/SPCBs
Air (Prevention and Control of Pollution) Act1981Framework for prevention, control, and abatement of air pollution; extended CPCB/SPCB mandate to air quality; designates air pollution control areas; amended through Jan Vishwas Act, 2023 (decriminalisation effective 1 April 2024)

1.3 Forest and Wildlife Laws

LawYearKey Provisions
Indian Forest Act1927Classifies forests into Reserved, Protected, and Village forests; regulates transit of forest produce
Wildlife (Protection) Act1972Provides legal framework for protection of wild animals and plants; establishes National Parks, Wildlife Sanctuaries; creates NBWL (National Board for Wildlife); schedules for protection (I to IV); 2022 Amendment: aligned with CITES; added new Chapter VB for regulating international trade; rationalised schedules from six to four; established Wildlife Crime Control Bureau provisions; addressed human-wildlife conflict
Forest (Conservation) Act1980Restricts diversion of forest land for non-forest purposes; requires prior Central Government approval; 2023 Amendment (Forest Conservation Amendment Act): renamed as Van (Sanrakshan Evam Samvardhan) Adhiniyam; exempted land within 100 km of international borders for strategic/security projects; exempted forest land up to 10 hectares for security infrastructure; exempted plantations raised on non-forest land; added provisions for assignment of forest land for certain purposes

1.4 Biodiversity Law

LawYearKey Provisions
Biological Diversity Act2002Enacted to implement the Convention on Biological Diversity (CBD); established three-tier structure: National Biodiversity Authority (NBA), State Biodiversity Boards (SBBs), Biodiversity Management Committees (BMCs at local level); regulates access to biological resources; ensures equitable benefit sharing; requires prior approval for foreign access to Indian biological resources; 2023 Amendment: decriminalised certain offences; introduced "registered AYUSH practitioners" provisions; replaced benefit-sharing with "access and benefit sharing" framework

Environmental Impact Assessment (EIA)

2.1 EIA Notification 2006

ParameterDetail
AuthorityMoEFCC (Ministry of Environment, Forest & Climate Change)
Legal BasisIssued under EPA 1986
CategorisationCategory A (Central appraisal by EAC); Category B (State appraisal by SEAC) — further divided into B1 (requires EIA) and B2 (no EIA required)
ProcessScreening, Scoping, Public Consultation (minimum 30 days), Appraisal, Decision
Validity of ECVaries by project type (mining: 30 years; river valley: 10 years; others: 7-10 years)

Exam Tip: The EIA process has four stages -- remember "S-S-P-A" (Screening, Scoping, Public Consultation, Appraisal). Category B2 projects are exempt from both EIA study and public consultation -- only a pre-feasibility report is needed. This exemption was a major point of controversy in the Draft EIA 2020, which proposed expanding the B2 category.

2.2 Draft EIA Notification 2020 (Controversy)

IssueDetail
Released11 April 2020
PurposeProposed to replace EIA 2006
Public Consultation PeriodReduced from 30 days to 20 days
Post-facto ClearanceAllowed ex-post facto environmental clearance for projects that started without approval (subject to penalties)
ExemptionsExpanded list of projects exempt from public hearings
Public Response17 lakh representations received; widespread protests including #ScrapEIA2020 campaign
ConcernsDilution of public participation; legalising violations; reduced transparency; threat to ecologically sensitive areas like Western Ghats
Current StatusRemains unfinalised as of 2025

Coastal Regulation Zone (CRZ)

3.1 CRZ Notification 2019

ZoneDefinitionRestrictions
CRZ-IEcologically sensitive: mangroves, corals, salt marshes, turtle nesting grounds, inter-tidal zoneNo new construction permitted; only eco-tourism activities
CRZ-IIDeveloped urban areas up to or close to the shorelineExisting Floor Space Index (FSI) norms apply; reconstruction of authorised structures allowed
CRZ-IIIARural areas with population density > 2,161 per sq. kmNo Development Zone (NDZ) reduced to 50 m from HTL (from 200 m under 2011 notification)
CRZ-IIIBRural areas with population density < 2,161 per sq. kmNDZ of 200 m from HTL retained
CRZ-IVWater area from Low Tide Line (LTL) to 12 nautical miles seaward; tidal-influenced water bodiesNo new construction except for traditional fishing and allied activities
Key Change (2019 vs 2011)Detail
NDZ ReductionCRZ-IIIA reduced from 200 m to 50 m from HTL
TourismTemporary tourism facilities (eco-tourism, home stays) permitted in CRZ-III areas
CRZ clearanceStreamlined; delegated to State Coastal Zone Management Authorities for CRZ-II and CRZ-III
Island ProtectionSeparate Island Coastal Regulation Zone (ICRZ) notification retained

Remember: CRZ-IIIA (densely populated rural coast) has an NDZ of only 50 m from HTL, while CRZ-IIIB (sparsely populated rural coast) retains the 200 m NDZ. The population density threshold separating IIIA from IIIB is 2,161 per sq km. UPSC often tests whether the NDZ was reduced uniformly or selectively -- it was selective, applying only to IIIA.


Compensatory Afforestation Fund Act (CAMPA), 2016

ParameterDetail
Enacted3 August 2016
Rules Notified10 August 2018
PurposeManage funds collected as compensation for forest land diverted for non-forest use under Forest (Conservation) Act, 1980
FundsNational Compensatory Afforestation Fund (under Public Account of India) and State Compensatory Afforestation Funds
UtilisationCompensatory afforestation, additional compensatory afforestation, penal compensatory afforestation, net present value (NPV)
ManagementNational CAMPA Advisory Council (chaired by Union Environment Minister); State CAMPA bodies
Total CorpusOver Rs 54,000 crore accumulated (as of 2023)
Key PrincipleAfforestation of equivalent non-forest area or double the area of degraded forest to compensate forest diversion

Key Environmental Institutions

5.1 Domestic Institutions

InstitutionEstablishedRole
MoEFCC1985 (originally MoEF; renamed 2014)Apex ministry for environmental policy, conservation, and regulation
CPCB (Central Pollution Control Board)1974 (under Water Act)Sets national ambient air and water quality standards; coordinates SPCBs; monitors compliance
SPCBs (State Pollution Control Boards)1974Enforce pollution control laws at state level; grant consent to establish/operate industries
National Green Tribunal (NGT)18 October 2010Statutory judicial body for environmental disputes (see detailed section below)
National Board for Wildlife (NBWL)Under Wildlife Act, 1972Chaired by PM; advises on wildlife conservation; approves projects in/near protected areas
National Biodiversity Authority (NBA)2003 (under BD Act, 2002)Headquartered in Chennai; regulates access to biological resources; ensures benefit sharing
Wildlife Crime Control Bureau (WCCB)2007Under MoEFCC; combats wildlife trafficking and organised wildlife crime
Forest Survey of India (FSI)1981Publishes biennial India State of Forest Report (ISFR); assesses forest cover

5.2 National Green Tribunal (NGT) — Detailed

ParameterDetail
Established18 October 2010, under the National Green Tribunal Act, 2010
India's DistinctionFirst dedicated environmental tribunal in a developing country
HeadquartersNew Delhi
Zonal BenchesBhopal, Pune, Kolkata, Chennai
Current ChairpersonJustice Prakash Shrivastava (since August 2023)
CompositionChairperson (retired SC judge or HC Chief Justice) + 10-20 Judicial Members (retired SC/HC judges) + 10-20 Expert Members (MSc/MTech with environmental experience)
AppointmentBy Central Government; Chairperson in consultation with CJI
Tenure5 years or age limit (Chairperson: 70; Judicial Members: 67/70; Expert Members: 65)
JurisdictionAll civil cases involving substantial questions relating to environment under 7 laws listed in Schedule I

5.3 NGT Schedule I Laws

S. No.Law
1Water (Prevention and Control of Pollution) Act, 1974
2Water (Prevention and Control of Pollution) Cess Act, 1977
3Forest (Conservation) Act, 1980
4Air (Prevention and Control of Pollution) Act, 1981
5Environment (Protection) Act, 1986
6Public Liability Insurance Act, 1991
7Biological Diversity Act, 2002

5.4 NGT Key Principles Applied

PrincipleApplication
Sustainable DevelopmentBalances economic development with environmental protection
Precautionary PrincipleLack of full scientific certainty is not a reason to postpone cost-effective measures to prevent environmental degradation
Polluter Pays PrincipleThe entity causing pollution bears the cost of remediation and compensation

International Environmental Governance

6.1 Key Multilateral Environmental Agreements (MEAs)

AgreementYearKey FeaturesIndia's Status
UNFCCC1992 (Rio Earth Summit)Framework convention to combat climate change; principle of Common but Differentiated Responsibilities (CBDR); COP is supreme decision-making bodyRatified 1993; party to all COPs
Kyoto Protocol1997 (effective 2005)Legally binding emission reduction targets for Annex I (developed) countries; Clean Development Mechanism (CDM); no binding targets for developing countriesRatified 2002; no binding targets (non-Annex I)
Paris Agreement2015 (COP 21)Bottom-up approach: Nationally Determined Contributions (NDCs); limit warming to well below 2 degrees C, pursue 1.5 degrees C; no distinction between developed and developing; Global Stocktake every 5 yearsRatified 2016; updated NDC 2022
Montreal Protocol1987Phase-out of ozone-depleting substances (ODS) like CFCs; Kigali Amendment (2016) added HFC phase-down; most successful environmental treatyRatified 1992; ratified Kigali Amendment 2021
Stockholm Convention2001 (effective 2004)Eliminates or restricts Persistent Organic Pollutants (POPs); 12 initial POPs ("dirty dozen")Ratified 2006
Basel Convention1989 (effective 1992)Regulates transboundary movement of hazardous wastes; prior informed consent; environmentally sound managementRatified 1992
Convention on Biological Diversity (CBD)1992 (Rio Earth Summit)Three objectives: conservation of biodiversity, sustainable use, equitable benefit sharing from genetic resources; Nagoya Protocol (2010) on access and benefit sharing; Kunming-Montreal Global Biodiversity Framework (2022, COP 15) with 30x30 targetRatified 1994; host to COP 11 (Hyderabad, 2012)
CITES1973 (effective 1975)Regulates international trade in endangered species; three Appendices (I: ban; II: regulated; III: voluntary listing); ~40,000 species coveredParty since 1976

Key distinction: Kyoto Protocol vs Paris Agreement -- Kyoto followed a top-down approach with legally binding targets only for developed (Annex I) countries, based on CBDR. Paris follows a bottom-up approach where ALL countries submit NDCs, but targets themselves are not legally binding. Know that the Kigali Amendment (2016) to the Montreal Protocol deals with HFCs (greenhouse gases used in refrigeration), NOT ozone-depleting substances -- it was added to the Montreal Protocol for practical reasons of using existing institutional machinery.

6.2 India's NDC under Paris Agreement

CommitmentTarget
Emissions IntensityReduce emissions intensity of GDP by 45% by 2030 from 2005 level (updated NDC 2022; original target 33-35% achieved ahead of schedule)
Non-Fossil EnergyAchieve 50% cumulative electric power installed capacity from non-fossil sources by 2030 (updated from 40%)
Carbon SinkCreate additional carbon sink of 2.5-3 billion tonnes CO2 equivalent through additional forest and tree cover by 2030
Net-Zero TargetAchieve net-zero emissions by 2070 (announced at COP 26, Glasgow, 2021)
Panchamrit Pledges500 GW non-fossil energy capacity by 2030; 50% renewable energy by 2030; reduce 1 billion tonnes CO2 by 2030

Important for UPSC

Key Themes for Prelims

  • Year of enactment of environmental laws (EPA 1986, Air Act 1981, Water Act 1974, etc.)
  • NGT: establishment year, composition, Schedule I laws, principles applied
  • CRZ zones and NDZ distances
  • EIA notification 2006 — categories A and B
  • Wildlife Protection Act schedules (I to IV post-2022 amendment)
  • Forest Conservation Amendment Act 2023 — key exemptions
  • International conventions — year, objective, India's ratification status
  • DPDP Act vs EPA — different domains, same year (2023)
  • Paris Agreement vs Kyoto Protocol differences
  • Montreal Protocol and Kigali Amendment

Key Themes for Mains (GS-III)

  • EIA as a tool for sustainable development — strengths and weaknesses
  • Draft EIA 2020 controversy and implications for environmental governance
  • Role of NGT in environmental justice — achievements and limitations
  • Forest Conservation Amendment 2023 — development vs conservation debate
  • India's climate commitments and progress on NDCs
  • Effectiveness of CAMPA in compensatory afforestation
  • Balancing coastal development with environmental protection (CRZ)
  • International environmental governance and India's leadership role


Recent Developments (2024–2026)

Forest Conservation Amendment Act 2023 — Governance Shifts

The Van (Sanrakshan Evam Samridhi) Adhiniyam, 2023 (Forest Conservation Amendment Act), which came into force on 1 December 2023, amended the Forest Conservation Act 1980. Key governance changes: (a) restricts the Act's protection to forests recorded in official government records, potentially removing the protection the Supreme Court's 1996 Godavarman judgment extended to all "deemed forests"; (b) exempts a 100-km strip along national borders from forest clearance requirements for strategic infrastructure; (c) permits eco-tourism, safaris, and other specified activities within forest areas without clearance; (d) allows states to establish Eco-Tourism corporations in forested areas.

MoEFCC issued guidelines in 2024 directing states to complete surveys of "deemed forests" to determine which qualify under the new Act. Environmental lawyers noted this creates regulatory uncertainty, as forests identified under Godavarman that are not recorded in official records may lose legal protection until states complete surveys — a process expected to take years.

UPSC angle: Forest Conservation Amendment Act 2023 provisions, its deviation from the Godavarman judgment, and the governance implications are high-priority Mains GS-2/GS-3 content.


Biological Diversity (Amendment) Act 2023 — In Force 2024

The Biological Diversity (Amendment) Act 2023, amending the Biological Diversity Act 2002, came into force in 2024. Key changes: (a) exempts AYUSH practitioners from ABS (Access and Benefit Sharing) requirements for codified traditional knowledge use, a response to AYUSH sector lobbying; (b) simplifies access procedures for Indian researchers, academic institutions, and startups; (c) decriminalises procedural violations, replacing jail terms with monetary penalties; (d) adds provisions for intellectual property protection for traditional knowledge databases.

The National Biodiversity Authority (NBA) issued operational guidelines in 2024 clarifying the scope of exemptions — particularly for large Ayurvedic/herbal companies vs. traditional practitioners. Civil society organisations expressed concern that the amendments could weaken protection for community-held traditional knowledge and open loopholes for commercial exploitation without benefit sharing.

UPSC angle: BD Amendment Act 2023 — AYUSH exemption, decriminalisation, traditional knowledge protection, and the balance with ABS commitments under the Nagoya Protocol are Mains GS-2/GS-3 content.


NGT at 14 Years — Achievements and Challenges 2024

The National Green Tribunal (NGT), marking 14 years of operation in 2024, has handled over 45,000 cases and delivered landmark environmental protection orders. In 2024, the NGT directed remediation of over 2,400 legacy waste dumpsites, issued suo motu orders on wetland encroachment in 17 states, and imposed cumulative penalties of over ₹1,000 crore on industries for water pollution violations.

The World Resource Institute's 2024 assessment ranked India's NGT as one of the world's three most active environmental courts (alongside Brazil's STF and China's Environmental Divisions). However, challenges persist: inadequate technical expertise in specialised benches, pendency of 15,000+ cases, and limited enforcement capacity in states. The Ministry of Law was studying proposals to expand the NGT bench strength and establish circuit courts in all state capitals.

UPSC angle: NGT's 14-year record, case statistics, suo motu powers, comparison with global environmental courts, and institutional challenges are Mains GS-2/GS-3 topics.


Vocabulary

Compliance

  • Pronunciation: /kəmˈplaɪ.əns/
  • Definition: The act of conforming to a rule, standard, regulation, or law, particularly in the context of industries and organisations adhering to environmental or legal requirements.
  • Origin: From Italian complire, from Latin complēre ("to fill up, fulfil"), from com- (intensive prefix) + plēre ("to fill"); the English noun emerged in the 17th century.

Effluent

  • Pronunciation: /ˈɛf.lu.ənt/
  • Definition: Liquid waste or sewage discharged from a factory, industrial plant, or sewage treatment facility into a water body or the environment.
  • Origin: From Latin effluēns, present participle of effluere ("to flow out"), from ex- ("out") + fluere ("to flow"); first used in English in the 1720s.

Abatement

  • Pronunciation: /əˈbeɪt.mənt/
  • Definition: The act of reducing the intensity, amount, or degree of something, particularly the reduction or elimination of pollution, nuisance, or environmental degradation.
  • Origin: From Middle English abatement, from Anglo-Norman abatre ("to beat down"), from Old French abatre, ultimately from Vulgar Latin abbatere, from Latin ad ("to") + battuere ("to beat"); attested from the 14th century.

Key Terms

National Green Tribunal

  • Pronunciation: /ˈnæʃ.ən.əl ɡɹiːn tɹaɪˈbjuː.nəl/
  • Definition: A statutory judicial body established on 18 October 2010 under the National Green Tribunal Act, 2010, for the effective and expeditious disposal of cases relating to environmental protection, conservation of forests, and enforcement of environmental legal rights in India. It has jurisdiction over civil cases arising from seven environmental Acts listed in Schedule I: the Water (Prevention and Control of Pollution) Act 1974, Water Cess Act 1977, Forest (Conservation) Act 1980, Air (Prevention and Control of Pollution) Act 1981, Environment (Protection) Act 1986, Public Liability Insurance Act 1991, and Biological Diversity Act 2002. India was the first developing country to establish a dedicated environmental court.
  • Context: "Tribunal" from Latin tribūnal ("raised platform for magistrates"), from tribūnus ("tribune"). The principal bench is located in Delhi, with zonal benches in Bhopal, Pune, Kolkata, and Chennai. The NGT is mandated to dispose of applications within six months. It is governed by principles of natural justice rather than the strict procedures of the Code of Civil Procedure, and is not bound by the Indian Evidence Act, making it easier for conservation groups to present environmental issues. While passing orders, the NGT applies three foundational principles: sustainable development, the precautionary principle, and the polluter pays principle. As of 2025, the NGT is chaired by Justice Prakash Shrivastava (since August 2023).
  • UPSC Relevance: GS3 Environment and GS2 Governance. Prelims tests establishment year (2010), the 7 environmental Acts under its jurisdiction, that it follows principles of natural justice (not strict CPC procedure), the 6-month disposal mandate, and that its orders are appealable to the Supreme Court within 90 days. Mains asks about the effectiveness of NGT in environmental governance — landmark orders on Ganga pollution, Delhi air quality, sand mining bans, and solid waste management are current affairs staples. Critically evaluate: whether NGT has been an effective check on environmental violations, challenges of enforcement of its orders, and the tension between expeditious disposal and the complexity of environmental disputes.

Environmental Impact Assessment

  • Pronunciation: /ɪnˌvaɪ.ɹənˈmɛn.təl ˈɪm.pækt əˈsɛs.mənt/
  • Definition: A systematic process of evaluating the likely environmental consequences of a proposed project or development before a decision is made to proceed, ensuring that environmental concerns are integrated into planning and decision-making through four sequential stages: Screening (determining whether EIA is required and categorising the project), Scoping (Expert Appraisal Committee sets Terms of Reference for the EIA study), Public Consultation (minimum 30 days for public hearings and written responses from stakeholders), and Appraisal (detailed scrutiny of the final EIA report and public consultation outcomes by the Expert Appraisal Committee). Projects are classified into Category A (central appraisal by EAC under MoEFCC) and Category B (state appraisal by SEAC), with Category B further divided into B1 (requires full EIA) and B2 (exempt from both EIA study and public consultation).
  • Context: The concept originated in the United States under the National Environmental Policy Act (NEPA), 1969. India adopted EIA through notifications under the Environment (Protection) Act, 1986, with the current regime governed by the EIA Notification, 2006. The Draft EIA Notification 2020, released on 11 April 2020 to replace the 2006 notification, generated massive controversy — 17 lakh public representations were received, and the #ScrapEIA2020 campaign highlighted concerns over reduced public consultation periods (from 30 to 20 days), post-facto environmental clearance for projects that started without approval, and expanded exemptions from public hearings. The draft remains unfinalised as of 2026.
  • UPSC Relevance: GS3 Environment. Prelims tests the four stages (remember "S-S-P-A": Screening, Scoping, Public consultation, Appraisal), the governing notification (EIA 2006 under EPA 1986), and the distinction between Category A (central clearance) and Category B projects (state clearance, further split into B1 and B2 — B2 requires no EIA or public hearing). Mains frequently asks about EIA dilution concerns, the Draft EIA 2020 controversies (post-facto clearance, reduced public consultation, expanded exemptions), and whether public participation in EIA is genuinely effective or merely procedural. Connect to Western Ghats ESA debate, mining in forest areas, and the tension between development and environmental protection.

Current Affairs Connect

ResourceLink
Environment NewsUjiyari -- Environment
Climate & PolicyUjiyari -- Governance
EditorialsUjiyari -- Editorials
Daily UpdatesUjiyari -- Daily Updates

Sources: moef.gov.in (MoEFCC), cpcb.nic.in (CPCB), greentribunal.gov.in (NGT), legislative.gov.in (India Code), pib.gov.in (Press Information Bureau), prsindia.org (PRS Legislative Research), unfccc.int (UNFCCC), cbd.int (Convention on Biological Diversity), unep.org (UNEP), environmentclearance.nic.in (EIA/EC Portal)