GS Paper 2 10 marks · 150w 9 min Medium
“The most significant achievement of modern law in India is the constitutionalization of environmental problems by the Supreme Court.” Discuss this statement with the help of relevant case laws.
Subtopic: Judiciary · environmental constitutionalism under Article 21
How to structure your answer
Introduction: no express environmental right; SC read it into Article 21 via PIL → Foundational cases: RLEK 1985, Oleum Gas Leak absolute liability → Rights expansion: Subhash Kumar, Vellore principles as law of the land → Doctrines: public trust (Kamal Nath), continuing mandamus (Godavarman) → Climate frontier: M.K. Ranjitsinh 2024 → Conclusion: constitutionalization is real, though implementation gaps temper it
Detailed model answer
216 words · target 150 words · 9 min
India's Constitution contains no express fundamental right to environment. Through public interest litigation, the Supreme Court read it into Article 21, harmonising it with Articles 48A and 51A(g), and thereby converted environmental protection from a statutory concern into a constitutional guarantee.
Constitutionalization through case law
- Rural Litigation and Entitlement Kendra v. State of UP (1985): the first environmental PIL; the Court ordered closure of Doon Valley limestone quarries.
- M.C. Mehta v. Union of India (1987, Oleum Gas Leak): evolved the absolute liability principle for hazardous industries.
- Subhash Kumar v. State of Bihar (1991): the right to pollution-free water and air is part of the right to life.
- Vellore Citizens Welfare Forum (1996): sustainable development, the precautionary principle and polluter pays declared part of the law of the land.
- M.C. Mehta v. Kamal Nath (1997): public trust doctrine over natural resources.
- T.N. Godavarman (1996 onwards): continuing mandamus over the country's forests.
- M.K. Ranjitsinh v. Union of India (2024): recognised a distinct right against the adverse effects of climate change under Articles 14 and 21.
By relaxing locus standi, fashioning remedies such as restoration and exemplary damages, and elevating environmental principles above ordinary law, the Court made them binding on all state action. Implementation gaps and overreach critiques persist, yet this jurisprudence — now extending to climate justice — remains modern Indian law's most significant achievement.
What an examiner expects to see
- No express environmental right exists; the SC constitutionalized it by reading a healthy environment into Article 21, harmonised with DPSP Article 48A and fundamental duty 51A(g) (both inserted by the 42nd Amendment).
- RLEK (1985) opened environmental PIL; the Oleum Gas Leak case (1987) created absolute liability, stricter than the Rylands v. Fletcher rule.
- Subhash Kumar (1991) is the clearest statement of constitutionalization: pollution-free water and air are part of the right to life.
- Vellore (1996) made sustainable development, the precautionary principle and polluter pays enforceable law of the land.
- Kamal Nath (1997) imported the public trust doctrine; Godavarman's continuing mandamus made the Court a standing environmental supervisor.
- M.K. Ranjitsinh (2024) extended the arc to a right against the adverse effects of climate change under Articles 14 and 21.
- A balanced answer notes critiques: judicial overreach, case-by-case inconsistency and weak implementation on the ground.
Concrete cases, schemes and judgments
- Rural Litigation and Entitlement Kendra v. State of UP (1985) — Doon Valley quarries closed
- Vellore Citizens Welfare Forum v. Union of India (1996) — precautionary and polluter-pays principles
- M.C. Mehta v. Kamal Nath (1997) — public trust doctrine applied against riverbed diversion for a motel
- T.N. Godavarman Thirumulpad (1996) — continuing mandamus that redefined forest for legal protection
- M.K. Ranjitsinh v. Union of India (2024) — climate-change right recognised in the Great Indian Bustard case
Terminology to weave into the answer
environmental constitutionalismabsolute liabilitypolluter pays principlepublic trust doctrinecontinuing mandamusclimate justice