Delhi’s New Plan for Cleaner Winters: Environmental Law and CAQM Analysis for CLAT 2027

CURRENT AFFAIRS | APRIL 7, 2026

CLAT GK + ENVIRONMENTAL LAW & CONSTITUTIONAL LAW

As Delhi braces for another pollution season, The Indian Express analyses the capital’s new comprehensive plan to achieve cleaner winters. The Commission for Air Quality Management (CAQM) and its Graded Response Action Plan (GRAP) form the backbone of this strategy, which encompasses structural reforms in waste management, stubble burning solutions, and transportation. The plan signals a shift from reactive crisis management to proactive, year-round pollution control.

Delhi’s air quality crisis has generated some of the most significant environmental jurisprudence in Indian legal history. From MC Mehta’s landmark petitions to the creation of the CAQM through a dedicated Act of Parliament in 2021, pollution control in the National Capital Region sits at the intersection of constitutional rights (Article 21), directive principles (Article 48A), fundamental duties (Article 51A(g)), and a robust body of environmental legislation. For CLAT aspirants, this is a goldmine of legal principles and landmark precedents.

Right to Clean Air: Article 21 Jurisprudence

The Supreme Court’s expansive interpretation of Article 21 has been central to environmental protection in India. In Subhash Kumar v. State of Bihar (1991), the Court declared that the right to live in a pollution-free environment is part of the fundamental right to life. This landmark ruling transformed environmental protection from a mere policy directive into an enforceable fundamental right — giving citizens the legal standing to challenge governmental inaction on pollution.

The MC Mehta series of cases further strengthened this jurisprudence. Justice Mehta filed numerous public interest litigations addressing vehicular pollution, industrial emissions, and solid waste management in Delhi, resulting in transformative orders including the conversion of public transport to CNG, relocation of polluting industries, and the creation of monitoring mechanisms.

CAQM: From EPCA to Statutory Commission

The Commission for Air Quality Management was established through a dedicated Act of Parliament in 2021, replacing the EPCA (Environment Pollution Prevention and Control Authority) that had been functioning as a Supreme Court-mandated body since 1998. The CAQM has overriding powers over state governments in matters of air quality in the NCR and adjoining areas, making it a powerful instrument of environmental governance. Its jurisdiction extends to NCR and areas in Haryana, Punjab, Rajasthan, and Uttar Pradesh that are deemed to affect Delhi’s air quality.

GRAP: Graded Response Action Plan

GRAP operates on four stages based on Air Quality Index (AQI) levels: Stage I (Poor: 201-300), Stage II (Very Poor: 301-400), Stage III (Severe: 401-450), and Stage IV (Severe+: above 450). Each stage triggers progressively stringent measures — from dust control and construction restrictions to banning diesel vehicles and school closures. The new plan aims to implement pre-emptive actions before pollution levels deteriorate, rather than reactive measures after the crisis has begun.

Environmental Law Principles in Indian Jurisprudence

Two foundational principles shape India’s environmental law framework. In Vellore Citizens Welfare Forum v. Union of India (1996), the Supreme Court formally adopted the Precautionary Principle (the State must anticipate and prevent environmental harm) and the Polluter Pays Principle (the polluter must bear the cost of remediation). In Indian Council for Enviro-Legal Action v. Union of India (1996), the Court further reinforced absolute liability for environmental damage, building on the MC Mehta precedent of absolute liability from the Oleum Gas Leak case.