Step taken by the Government of India to control air pollution include :

Question

( A ) Permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles
( B ) Compulsary PUC (Pollution Under Control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbons
( C ) Use of non-polluting Compressed Natural Gas (CNG) only as fuel by all buses and trucks
( D ) Compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with diesel