In a landmark ruling, the Supreme Court struck down a 2017 controversial notification and an Office Memorandum of 2021 issued by the Ministry of Environment, Forest and Climate Change (MoEFCC), permitting environmental clearance to be granted to developmental projects after they had already started operations.
This judgment is a strong reaffirmation of the "mitigation hierarchy" which is the foundation of any environmental decision-making. This follows a principle that any activity with potential environmental harm must first be avoided, and if avoidance is not possible, the impacts shall be minimised.
The court made it clear that "ex post facto" EC is illegal and undermines the very foundation of environmental law.
“The court must come down very heavily on the attempt of the Central government to do something which is completely prohibited under the law. Cleverly, the words ex post facto have not been used, but without using those words, there is a provision to effectively grant ex post facto EC.”Supreme Court of India (Vanshakti vs Union of India, 17 May 2025)

