Order of the Supreme Court of India in the matter of M. C. Mehta Vs Union of India & Others dated 15/06/2020 regarding steps to control vehicular pollution. A bunch of cases on similar matters were clubbed together and heard by Justices Arun Mishra and S. Abdul Nazeer. The cases ranged from registration of diesel vehicles/machines/equipments of North Delhi Municipal Corporation (NDMC), East Delhi Municipal Corporation (EDMC) for public purpose to registration of BS-IV vehicles.

Response by the Ministry of Road Transport and Highways (MoRTH) to the National Green Tribunal order of November 19, 2019 in the Original Application No. 807/2018 and 996/2018.

Order of the National Green Tribunal (Southern Zone, Chennai) in the matter of Lawyers’ Environmental Awareness Forum (LEAF) Vs Government of Kerala & Others dated 06/01/2020 regarding air pollution especially vehicular pollution in Kerala. There was no policy formulation on the issue of curbing the use of diesel vehicles which are more than ten years old in the state, the application stated.

Order of the Supreme Court in the matter of M. C. Mehta Vs Union of India & Others dated 15/11/2019 regarding air pollution control in Delhi NCR.

A joint affidavit was submitted on behalf of the Ministry of Environment, Forest and Climate Change and Central Pollution Control Board on the establishment of towers to remove pollution but a final decision is yet to be taken. The court directed that the concerned stake holders file their response on Project Vayu as to how much time would it take to note the results of the trial and the minimum period required for that.

Order of the Supreme Court of India in the matter of M. C. Mehta Vs Union of India & Others dated 04/11/2019 regarding pollution in Delhi and NCR region especially compounded by stubble burning.

Apex Court comes down heavily on the authorities saying "in spite of various directions issued by High Court, other authorities including this Court the State Governments, Government of NCT of Delhi and the corporations of Delhi and nearby States are not performing their duties as enjoined upon them."