Order of the Supreme Court of India in the matter of M. C. Mehta Vs Union of India & Others dated 02/08/2019 regarding registration of new taxis in Delhi, only if the vehicles operate on dual fuel or petrol or CNG. The Apex Court makes it clear, that it's order of 10/05/2016 that new taxis in NCR would be given permit only if the vehicle operate on duel fuel or petrol or CNG. Further, no vehicle shall be registered as a city taxi if it runs on diesel fuel.