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M.C. Mehta vs Union of India — Delhi pollution crisis

The Supreme Court is monitoring the air pollution crisis in Delhi through the long-pending M.C. Mehta case, which includes the appointment of 13 Court Commissioners to oversee truck bans. As of 23 October 2026, authorities have implemented the first stage of the Graded Response Action Plan, and the Delhi Traffic Police are coordinating new inter-state vehicle entry restrictions to mitigate rising pollution levels.

Rajeev Suri vs Delhi Development Authority — Central Vista Project case

In a 2:1 verdict on 5 January 2021, the Supreme Court upheld the Central Vista project. Following this, the court initiated a suo motu case on 16 October 2026 regarding the relocation of the Central Secretariat Library. Additionally, on 17 October 2026, the court expressed dissatisfaction with authorities concerning the preservation of Delhi's heritage sites during a hearing of a petition filed by Rajeev Suri.

Arjun Gopal vs Union of India — Firecrackers ban case

In the Arjun Gopal vs Union of India matter, the Supreme Court has maintained its refusal to impose a complete nationwide firecracker ban, opting instead for regulated use to address pollution concerns. As of 13 October 2026, the Court continues to emphasize voluntary restraint and sensitivity toward religious sentiments while reviewing the impact of barium-based crackers and pollution following expert input from the Central Pollution Control Board.

Coal Block Allocation Cases (Coalgate) — CBI/ED trials, Supreme Court supervision, and related appeals

The Coal Block Allocation cases involve allegations of irregularities in allocations between 1993 and 2011, which the Supreme Court declared arbitrary in 2014. While criminal proceedings against former Prime Minister Dr. Manmohan Singh were closed on 29 July 2026, trials continue before Special Courts in Delhi. As of 13 October 2026, a special CBI court took cognisance of charges in the Fatehpur East coal block allocation case, while the Delhi High Court has been permitted to hear pending appeals as of 30 July 2026.

In re: Alleged violation of GM crop policy

Petitioners have moved the Supreme Court seeking urgent listing of contempt pleas, alleging that the Centre's approval of herbicide-tolerant GM basmati rice violates the court's 2024 directions regarding national GM crop policies.

Delhi Ridge tree-felling case — Contempt of court for environmental violation

In its judgment delivered on 28 May 2025, the Supreme Court held the Delhi Development Authority guilty of criminal contempt for illegally felling trees in the Delhi Ridge. While authorities have since inaugurated 185 acres of compensatory afforestation as 18 Namo Oxygen Parks, the Ridge Management Board continues to scrutinize various infrastructure proposals and oversee the removal of invasive species as of 23 September 2026.

Vyakti Vikas Kendra India v. Manoj Misra (Dead) & Ors. — Polluter Pays Principle and Environmental Damage

The Supreme Court set aside an NGT order against Art of Living in a Yamuna floodplain matter. The Court held that the Polluter Pays Principle cannot be invoked absent a demonstrable link to environmental damage. The Court found that contemporaneous material showed the site was already damaged before it was handed over to the appellant.