Introduction

India’s environmental jurisprudence underwent its most consequential transformation in decades between 2024 and 2025. Two Supreme Court judgments — one recognising freedom from climate change as a fundamental right, and another permanently banning retrospective environmental clearances — have redefined the constitutional boundaries of development and ecology in India. This article offers a comprehensive legal analysis for law students and researchers, covering the statutory framework, judicial reasoning, key case laws, and doctrinal principles that now anchor India’s environmental law landscape. 

The Constitutional Ecology of Environmental Right:

The intersection of constitutional rights and ecological protection has long been a contested terrain in Indian law. The founding fathers of the Constitution did not expressly include environmental protection in the Fundamental Rights chapter. Yet, through progressive interpretation, the Supreme Court of India has transformed Articles 21 (Right to Life) and 14 (Right to Equality) into powerful instruments of environmental accountability.

From the early recognition of the right to a clean environment in Francis Coralie Mullin v. Administrator, Union Territory of Delhi (1981), to the watershed moment of 2024 when the Supreme Court declared protection from climate change a distinct fundamental right, Indian environmental jurisprudence has travelled an extraordinary distance. What is equally important today is the judicial crackdown on procedural shortcuts — particularly the practice of granting Environmental Clearances (ECs) to projects that had already commenced without prior approval.

Before analyzing case law, it is essential to understand the statutory architecture within which Indian environmental courts operate. India’s environmental legal framework comprises several interlocking statutes and constitutional provisions:

1972 — Wildlife (Protection) Act

Protection of endangered species, including Schedule I species such as the Great Indian Bustard and the Lesser Florican. Forms the species-protection backbone of India’s environmental law.

1980 — Forest (Conservation) Act

Restricts diversion of forest land for non-forest purposes without prior approval of the Central Government.

1986 — Environment (Protection) Act (EPA)

India’s principal umbrella environmental statute. Empowers the Central Government to take measures for protecting and improving environmental quality. Source of authority for EIA notifications.

1991 — Constitutional (Seventy-Third Amendment) / Article 48A & 51A(g)

Article 48A (Directive Principle): State shall endeavour to protect and improve the environment and safeguard forests and wildlife. Article 51A(g) (Fundamental Duty): Every citizen’s duty to protect and improve the natural environment.

2006 — EIA Notification

Mandates mandatory prior environmental clearance before the commencement of specified development projects. The phrase “prior environmental clearance” appears 34 times in the notification, underlining its non-negotiable character.

2010 — National Green Tribunal Act

Established the NGT as a specialised judicial body for expeditious disposal of cases relating to environmental protection and conservation of forests and other natural resources.

Background and Facts

What began as a petition by wildlife conservationist M.K. Ranjitsinh to protect the critically endangered Great Indian Bustard (GIB) — a Schedule I species under the Wild Life (Protection) Act, 1972 — from fatal collisions with overhead power transmission lines in Rajasthan and Gujarat, ultimately expanded into one of the most consequential constitutional rulings in India’s legal history.

Renewable energy companies had installed high-voltage overhead transmission lines through the GIB’s last remaining habitat. Local farming communities in Rajasthan, where the GIB is also the state bird, had long raised alarms about the bird deaths. The Supreme Court was thus placed at the crossroads of two urgent national imperatives: conservation of a critically endangered species and India’s commitment to renewable energy expansion.

M.K. Ranjitsinh & Ors. v. Union of India & Ors. — Civil Original Jurisdiction, decided 21 March 2024

Bench: Three-Judge Bench led by Chief Justice D.Y. Chandrachud

Constitutional provisions invoked: Articles 14, 21, 48A, and 51A(g) of the Constitution

Key Holding: For the first time in 75 years of constitutional history, the Supreme Court expressly recognised a distinct fundamental right to be free from the adverse effects of climate change, flowing from Articles 21 and 14. The Court held that since climate change directly threatens access to clean air, water, and food, and disproportionately affects marginalised communities including forest-dwellers and indigenous peoples, it implicates both the right to life and the right to equality.

Doctrinal Significance

The Court built upon a rich chain of precedents that had progressively expanded Article 21:

Francis Coralie Mullin v. Administrator, Union Territory of Delhi (1981)

First recognition that the right to life under Article 21 encompasses the right to health, a clean environment, and basic necessities. Laid the foundational principle that Article 21 is a reservoir of unenumerated rights.

Subhash Kumar v. State of Bihar (1991)

The Supreme Court held that the right to live in a healthy and pollution-free environment is a right to life guaranteed under Article 21. Recognised that pollution of rivers such as the Bokaro — with its impact on drinking water — directly violates Article 21.

Virender Gaur v. State of Haryana (1995)

The Court recognised a “right to a clean environment” as flowing directly from Article 21 — described in Ranjitsinh as one of two sides of the same coin as the right against adverse climate change effects.

M.C. Mehta v. Union of India (1986 — Oleum Gas Leak Case)

Justice Bhagwati articulated the doctrine of Absolute Liability — departing from English law’s Rylands v. Fletcher rule — holding that enterprises engaged in hazardous activities owe an absolute, non-delegable duty to compensate victims of harm, regardless of fault or precaution. A cornerstone of Indian environmental liability law.

Constitutional Holding — Ranjitsinh (2024)

The right against the adverse effects of climate change flows from Articles 21, 14, 48A, and 51A(g) of the Constitution. Climate change is not merely a policy matter but a rights issue, imposing positive obligations on the State to protect citizens — particularly the most vulnerable — from its consequences. This right is absolute and fundamental, not aspirational.

The Developmental Tension in Ranjitsinh

In a revealing tension, the same bench that recognised the climate change right ultimately approved the installation of overhead power lines through the GIB habitat, reasoning that expanding renewable energy capacity was essential to reducing climate inequality, narrowing energy-access disparities, and achieving India’s international climate commitments under the Paris Agreement. This drew significant scholarly criticism — critics argued that the Court created a fundamental right with one hand and diluted it with the other in the same judgment.

However, the Court directed a ten-year timeline for conservation measures including in-situ operations, construction of predator-proof enclosures, and restoration of degraded grasslands. In December 2025, a subsequent bench of Justices Narasimha and A.S. Chandurkar doubled down on these conservation directions.

The Problem: “Pollute Now, Seek Permission Later“

The EIA Notification, 2006 is unambiguous: no project may commence without a prior Environmental Clearance. Yet, a deeply troubling practice had entrenched itself in India’s regulatory landscape — developers began projects without EC, completed them (or significantly advanced them), and then sought retrospective clearance. This approach was colloquially referred to as the “pollute and pay” model.

In 2017, the Ministry of Environment, Forest and Climate Change (MoEFCC) formally institutionalised this practice through a notification allowing ex-post facto ECs. The Supreme Court had quashed similar notifications in 2014 and 2015. Despite this, the Ministry issued a 2021 Office Memorandum (OM) creating a Standard Operating Procedure (SOP) that effectively revived the same framework through another route. The NGO Vanashakti challenged these instruments before the Supreme Court.

Vanashakti v. Union of India — 2025 SCC OnLine SC 1139, decided 16 May 2025

Bench: Justice Abhay S. Oka and Justice Ujjal Bhuyan

Challenge: Constitutional validity of the 2017 MoEFCC Notification and the 2021 Office Memorandum permitting retrospective (ex-post facto) Environmental Clearances

Key Holding: Both instruments were struck down as unconstitutional, arbitrary, and contrary to established environmental jurisprudence. Ex-post facto ECs violate the constitutional right to a pollution-free environment under Article 21. The Court permanently barred the government from issuing any future notification permitting such clearances. ECs already granted under the quashed notifications were allowed to stand, to avoid disproportionate disruption to completed projects.

Petitioner’s Legal Argument

Vanashakti, led by its director Stalin D., argued that the phrase “prior environmental clearance” appears 34 times in the EIA Notification 2006 — the mandatory, pre-commencement character of the EC was therefore textually unchallengeable. The 2021 OM, it was submitted, had been issued beyond the legislative powers available to the Ministry under the Environment (Protection) Act, 1986, and introduced a third, impermissible category of “otherwise permissible” projects into the binary scheme of the EIA Notification (prohibited projects vs. permissible projects).

Government’s Counter-Argument

The Additional Solicitor General defended the 2021 OM as a pragmatic regulatory tool — pointing out that demolition of completed or nearly-completed projects also causes environmental damage (citing the demolition of the Supertech Twin Towers in 2021 as an example), and that the OM actually imposed penalties, bank guarantees, and environmental restoration plans on violators.

The Court’s Reasoning

The bench rejected the government’s pragmatism argument decisively, holding that retrospective EC is “alien to environmental jurisprudence.” Permitting developers to build first and obtain clearance later was found to undermine the very purpose of environmental assessment, which is to evaluate potential harm before irreversible consequences occur. Allowing post-facto approvals would legalise illegality and render the EIA framework meaningless.

Core Principle — Vanashakti (2025)

An ex-post facto Environmental Clearance is constitutionally impermissible. The EIA process exists precisely to prevent environmental harm before it occurs — not to regularise harm that has already been caused. Compliance with environmental law is not optional; it is a constitutional mandate flowing from Article 21.

The Review Petition and Dissent

The industry body CREDAI (representing over 13,000 developers) filed a review petition, arguing that completed or nearly-completed public and private projects worth approximately ₹20,000 crore could face demolition as a result of the judgment. A dissenting voice within the subsequent proceedings noted that many government and PSU projects, having completed EIA formalities but unable to receive EC owing to the January 2024 stay, were caught in regulatory limbo. The review proceedings continued into late 2025, underscoring the enormous economic stakes involved in balancing environmental compliance with development continuity.

Precautionary Principle

Adopted by the Supreme Court in Vellore Citizens’ Welfare Forum v. Union of India (1996), this principle holds that in the face of scientific uncertainty about environmental harm, protective action must be taken rather than delayed. In the GM crops case decided in 2024, Justice Nagarathna held that since genetic modification of mustard could endanger India’s indigenous mustard varieties, the precautionary principle required framing of a comprehensive national GM crop policy before approval.

Polluter Pays Principle

Also affirmed in Vellore Citizens’ Welfare Forum (1996), this doctrine holds that those who cause pollution must bear the costs of managing it to prevent damage to human health and the environment. The 2021 OM attempted to implement this through financial penalties and bank guarantees on ex-post facto EC applicants, though the Supreme Court in Vanashakti found this insufficient to save the unconstitutional framework.

Absolute Liability (Indian Law)

India’s absolute liability doctrine, originating in M.C. Mehta v. Union of India (1986), imposes non-delegable liability on enterprises engaged in inherently dangerous activities — significantly stricter than England’s Rylands v. Fletcher rule, which permits the defence of “Act of God” or third-party fault. In India, no such exception is available when harm flows from a hazardous activity.

Public Trust Doctrine

Recognized in M.C. Mehta v. Kamal Nath (1997), this doctrine holds that the State is a trustee of natural resources — rivers, forests, the atmosphere — on behalf of present and future generations. The State cannot alienate or exploit these resources in a manner that defeats the public interest. It operates as a constitutionally implied limitation on State power over natural resources.

Sustainable Development

Indian courts have consistently held that development and environmental protection are not irreconcilable — the goal is sustainable development, where present needs are met without compromising the ability of future generations to meet theirs. The Supreme Court and the NGT have repeatedly affirmed this principle (rooted in the Brundtland Report, 1987).

India’s 2024 climate change ruling does not stand in isolation — it forms part of a growing global movement of climate litigation that uses constitutional rights frameworks to compel state action:

State of the Netherlands v. Urgenda Foundation (Dutch Supreme Court, 2019)

The Dutch Supreme Court ordered the government to reduce greenhouse gas emissions by at least 25% below 1990 levels by end-2020, relying on Articles 2 (right to life) and 8 (right to private life) of the European Convention on Human Rights. One of the first successful climate cases framed through a human rights lens globally.

Held v. State of Montana (Montana Supreme Court, USA, 2024)

Youth plaintiffs succeeded in establishing a constitutional right to a clean and healthful environment including a stable climate under the Montana Constitution. The court struck down a state statute that prohibited climate considerations in environmental reviews — structurally similar to India’s EIA debate.

European Court of Human Rights — Three Landmark Rulings (April 2024)

The ECtHR issued three landmark climate rulings in April 2024, including Verein KlimaSeniorinnen Schweiz v. Switzerland, finding that Switzerland had failed to meet its positive obligations under Article 8 ECHR (right to private and family life) to protect citizens from adverse climate effects. India’s Ranjitsinh judgment predates these by mere weeks, placing the Supreme Court of India at the global vanguard of rights-based climate jurisprudence.

Both Ranjitsinh and Vanashakti expose a central fault line in Indian environmental law: the perpetual tension between development imperatives and ecological preservation. In Ranjitsinh, the Supreme Court expanded constitutional rights with one hand while approving the energy project challenged in the very same petition with the other. Critics note this reflects a broader pattern in the Court’s jurisprudence — strong environmental rhetoric with inconsistent enforcement when major infrastructure or renewable energy projects are at stake.

The Vanashakti judgment, by contrast, represents a firmer line — the Court’s refusal to permit a “pollute and pay” framework was unequivocal and structurally important. By permanently barring future ex-post facto EC notifications, the judgment restores the prophylactic integrity of the EIA regime. However, the review proceedings initiated by CREDAI — and the dissenting judicial concern about ₹20,000 crore worth of stranded projects — demonstrate that economic pressure on environmental enforcement remains formidable.

India also lacks a unified climate change legislation. Unlike the United Kingdom’s Climate Change Act, 2008, which sets statutory emission reduction targets, or the European Union’s European Climate Law, India’s climate obligations are distributed across scattered statutes, policies, and now constitutional rights recognised through judicial interpretation. For law students, this gap between the judicial ambition of Ranjitsinh and the legislative vacuum it inhabits represents a significant field for future research and advocacy.

India’s environmental law has entered a new constitutional chapter. The Supreme Court’s recognition of the right against adverse effects of climate change as a fundamental right in Ranjitsinh (2024) is a jurisprudential milestone — it elevates climate justice from the realm of policy discretion to constitutional obligation. The Vanashakti judgment (2025) reinforces the integrity of India’s environmental clearance regime by foreclosing the dangerous “pollute and pay” model that had taken institutional root.

Yet, these judicial advances must be matched by legislative action. India urgently requires a comprehensive Climate Change Act that translates the constitutional right recognised in Ranjitsinh into statutory targets, timelines, and enforcement mechanisms. It also needs a reformed EIA framework that is insulated from regulatory capture and executive dilution. For law students and researchers, these developments open rich avenues of inquiry — at the intersection of constitutional law, administrative law, international environmental law, and climate justice theory.

SEO Keywords