M.C. Mehta v. Union of India

In M.C. Mehta v. Union of India AIR 1988 SC 1115, a writ had been admitted by the Supreme Court. It was related to pollution of the river Ganga by dint of tanneries in Kanpur. To control and prevent pollution, the Court ordered to shift the dairies outside the cities. It further held that new industries should only be granted a licence when they have adequate provision for the treatment of trade effluent and action should be taken against existing industries if they found guilty of polluting water; also, the Court refrained High Courts from ordinarily granting orders of stay of criminal proceedings in such matters. It also held that under Article 52-A (g) of the Constitution 2, the Central Government had a duty to direct all the schools to teach lessons about the natural environment.