The State’s Constitutional Duty to Protect Public Health and the Environment

In India, protecting the environment is not just a policy preference – it is a constitutional obligation placed squarely on the shoulders of the state. Through a combination of Directive Principles of State Policy, fundamental duties, and decades of progressive judicial interpretation, the Indian Constitution establishes a clear mandate: the state must actively safeguard public health and the natural environment. This duty extends beyond enacting laws on paper. Courts have repeatedly held that the state must take concrete, measurable steps to prevent pollution, restore ecological balance, and ensure that every citizen can live in a clean and healthy environment.

Article 47 and the state’s primary duty toward public health 🔗

Article 47 falls under the Directive Principles of State Policy and was debated in the Constituent Assembly on 23 and 24 November 1948. It places a clear obligation on the state regarding public welfare. The article directs the state to prioritize improving the level of nutrition, the standard of living, and public health among its citizens. The full text of Article 47 states that the state shall regard the improvement of public health as one of its primary duties, and it shall also endeavour to restrict consumption of intoxicating drinks and drugs harmful to health, except for medicinal purposes.

While Article 47 is technically non-justiciable – meaning it cannot be directly enforced in a court of law – it serves as a foundational guiding principle for government policy-making. The framers of the Constitution recognised that health, nutrition, and living standards are vital components of human development and social justice. Over time, the judiciary has treated this directive not as a mere suggestion but as a moral and constitutional compass that shapes legislation, executive action, and court orders.

The public health-environment link 🔗

The connection between public health and environmental quality is now well established in Indian constitutional law. Article 47 directs the state to improve public health, which is intrinsically linked to a clean environment. Polluted air, contaminated water, and degraded ecosystems directly harm human health – making environmental protection inseparable from the state’s public health obligations. Courts have leveraged this link to hold governments accountable for failing to control industrial pollution, manage waste, and provide clean drinking water.

The Supreme Court has backed these duties, stating that the right to health is part of the right to life, and has stressed the state’s duty to protect life and ensure everyone has access to good healthcare. This judicial reasoning effectively transforms Article 47 from a non-binding directive into a principle with real legal force when read alongside fundamental rights like Article 21 (the right to life).

Article 48A: The explicit environmental directive 🔗

Article 48A was not a part of the original Constitution of India 1950 and was inserted by the Constitution (Forty-second Amendment) Act, 1976. It explicitly directs the state to protect and improve the environment and to safeguard the country’s forests and wildlife. This amendment was a direct response to growing global environmental awareness, particularly after the 1972 United Nations Conference on the Human Environment in Stockholm.

The timing of this amendment was not coincidental. The Stockholm Conference significantly influenced India’s constitutional approach, and Prime Minister Indira Gandhi was the only head of state to attend this landmark conference. Alongside Article 48A, the same amendment also introduced Article 51A(g), which imposes a fundamental duty on every citizen to protect and improve the natural environment – including forests, lakes, rivers, and wildlife.

Together, Articles 47, 48A, and 51A(g) create a constitutional framework where both the state and citizens share responsibility for environmental stewardship. These provisions collectively form the framework for environmental protection in India, with Article 21 (right to life) judicially interpreted to include the right to a clean and healthy environment.

Judicial directives mandating state action on pollution and health 🔗

Indian courts have been instrumental in transforming these constitutional directives into enforceable obligations. Through Public Interest Litigations (PILs) and landmark judgments, the judiciary has repeatedly ordered state authorities to take concrete environmental action.

Municipal Council, Ratlam v. Vardhichand (1980) 🔗

One of the earliest and most influential cases establishing the state’s environmental duty is Municipal Council, Ratlam v. Vardhichand (1980). The case addressed a deeply rooted problem – the failure of local authorities to provide basic sanitation and public health facilities, particularly in areas inhabited by the poor. Residents of Ratlam had complained for years about open drains, discharge of foul effluents from an alcohol plant, and the absence of public toilets, which forced slum dwellers to use public roads.

The Supreme Court rejected the defence of financial incapacity and emphasised that public health, dignity, and sanitation are non-negotiable obligations of local self-governing bodies. The Court directed the municipality to construct drainage systems, provide separate public latrines for men and women, and arrange for water supply and cleaning services – all within six months. This judgment established a vital precedent: a state body cannot cite lack of funds as an excuse for failing to fulfill its environmental and public health obligations.

The Talcher coalfields and community health 🔗

The Talcher region in Odisha’s Angul district presents a stark example of the intersection between industrial activity and public health. The Talcher coalfields, spread over about 500 square kilometres, are among the largest coal reserves in the country. Mining operations by Mahanadi Coalfields Limited (MCL) have led to severe air and water pollution, affecting the health of surrounding communities.

Research on coal mining environment and health problems in the Talcher coalfields has documented the negative externalities and health issues experienced by local populations, including illness and diseases among displaced households. The National Green Tribunal has sought responses from MCL, the state government, and pollution control boards over worsening air pollution in Talcher, where the Air Quality Index has frequently reached alarming levels. This ongoing scrutiny reflects the judicial and quasi-judicial system’s commitment to holding both state agencies and public sector enterprises accountable for environmental harm.

M.C. Mehta v. Union of India and the evolution of environmental jurisprudence 🔗

No discussion of judicial directives on environmental protection is complete without the series of M.C. Mehta cases. In M.C. Mehta v. Union of India (1986), the Supreme Court relied on the concept of “absolute liability” to hold the plant-owner liable for an oleum gas leak – removing all defences that existed under the older “strict liability” standard. This was a watershed moment. The Court established that industries engaged in hazardous activities owe an absolute duty of care to the public and cannot escape responsibility.

In subsequent M.C. Mehta petitions, the Court addressed Ganga river pollution, air quality in Delhi, and protection of the Taj Mahal from industrial emissions. These cases collectively built a body of environmental law that compels the state to act proactively – not just reactively – to prevent ecological damage.

Key judicial principles reinforcing state environmental obligations 🔗

Through decades of litigation, Indian courts have developed several foundational principles that define the scope and nature of the state’s environmental duties.

The polluter pays principle 🔗

In Indian Council for Enviro-Legal Action v. Union of India (1996), the Supreme Court ruled that polluters should bear the cost of cleaning up contamination, thereby establishing the “polluter pays principle” as a cornerstone of Indian environmental law. This means the state has a duty not only to prevent pollution but also to ensure that those responsible for environmental damage are held financially accountable for remediation and restoration.

The public trust doctrine 🔗

The state, as a trustee, is under a legal duty to protect natural resources, and these resources meant for public use cannot be converted into private use. The Supreme Court adopted this doctrine in M.C. Mehta v. Kamal Nath (1997), reinforcing the idea that the government holds environmental resources in trust for the people. Any state action that compromises the quality of air, water, forests, or other natural assets amounts to a breach of this public trust.

The precautionary principle 🔗

Indian courts have also embraced the precautionary principle, which requires the state to take preventive measures against environmental harm even in the absence of complete scientific certainty. In the Vellore Citizens Welfare Forum v. Union of India (1996), the Supreme Court applied this principle alongside the polluter pays principle, directing the state to take action against tanneries polluting the Palar River in Tamil Nadu.

Environmental governance as active obligation, not passive policy 🔗

A recurring theme in Indian environmental jurisprudence is that the state’s duty goes far beyond drafting policies or enacting legislation. Courts have consistently held that the state must actively implement, monitor, and enforce environmental protections.

In a landmark 2024 ruling in M.K. Ranjitsinh v. Union of India, the Supreme Court ruled that the Constitution confers the right against the adverse effects of climate change, flowing from Articles 48A, 51A(g), 21, and 14. This decision is significant because it extends the state’s environmental duty into the domain of climate action – obligating the government to address not just localised pollution but the broader systemic challenge of climate change.

The judiciary has interpreted these provisions through a harmonious reading of Article 21 with the Directive Principles (particularly Article 48A) and the fundamental environmental duty of citizens, creating the basis for recognition of a constitutional environmental right. This integrated approach means courts can issue wide-reaching directions – from closing polluting industries to mandating environmental impact assessments – all grounded in the constitutional framework.

State accountability through the National Green Tribunal 🔗

The establishment of the National Green Tribunal (NGT) in 2010 added an institutional layer to the enforcement of the state’s environmental duties. The NGT has the power to hear cases involving environmental protection and conservation of forests and natural resources. It has been particularly active in holding both state governments and public sector enterprises accountable for failing to meet environmental standards – as seen in ongoing proceedings related to air pollution in Talcher and solid waste management across Indian cities.

The gap between constitutional mandate and ground reality 🔗

Despite the strong constitutional and judicial framework, significant challenges remain. Environmental degradation persists due to factors like industrial pollution, deforestation, and inadequate enforcement of environmental laws. There is often a gap between court orders and their implementation on the ground. State agencies may lack the institutional capacity, political will, or financial resources to fully comply with judicial directives.

For instance, while the Supreme Court has repeatedly issued orders on Delhi’s air pollution, the problem returns every winter. Similarly, despite NGT directives, coal-producing regions continue to experience hazardous air quality levels. The challenge is not a lack of legal tools but rather consistent and effective implementation at every level of government.

The Constitution does not merely protect the environment; it mandates active participation from both the state and its citizens. Bridging the gap between this mandate and the reality on the ground requires stronger enforcement mechanisms, greater institutional capacity, and a culture of environmental accountability that extends from the highest levels of government to local municipal bodies.

Looking ahead: the evolving scope of state environmental duty 🔗

The scope of the state’s environmental obligation continues to expand. The recognition of a constitutional right against the adverse effects of climate change marks a new frontier. Going forward, state duties may increasingly encompass areas such as climate adaptation planning, protection of environmental refugees, regulation of carbon emissions, and preservation of biodiversity.

The Indian judgment emphasised the disproportionate burden of climate change on women and marginalised communities, acknowledging that lack of clean energy access exacerbates gender inequality and health risks. This signals a shift toward an understanding of environmental duty that is not just ecological but deeply connected to social justice and equity – consistent with the founding vision of the Indian Constitution.

What do you think? Should courts have the power to issue time-bound directions to state agencies on environmental matters, or does this amount to judicial overreach? And how can the gap between constitutional environmental mandates and actual implementation be effectively bridged at the local government level?

References

1. https://indiankanoon.org/doc/1551554/
2. https://www.constitutionofindia.net/articles/article-48a-protection-and-improvement-of-environment-and-safeguarding-of-forests-and-wild-life/
3. https://www.hhrjournal.org/2025/04/20/a-breath-of-fresh-air-indian-supreme-court-declares-protection-from-climate-change-a-fundamental-right/
4. https://indiankanoon.org/doc/440471/
5. https://www.scobserver.in/75-years-of-sc/giving-the-green-signal-the-supreme-court-and-the-environment-eco/
6. https://legaldesire.com/15-landmark-judgments-on-environmental-protection/
7. https://www.orissapost.com/ngt-seeks-response-over-air-pollution-in-talcher/