Steps taken by government of India in controlling air pollution areA. Use of non-polluting Compressed Natural Gas (CNG) only as fuel by all buses and trucksB. Compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with dieselC. Compulsary PUC (Pollution Under Control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbonsD. Permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles

Steps taken by government of India in controlling air pollution areA.

1.	Steps taken by government of India in controlling air pollution areA. Use of non-polluting Compressed Natural Gas (CNG) only as fuel by all buses and trucksB. Compulsory mixing of 20% ethyl alcohol with petrol and 20% biodiesel with dieselC. Compulsary PUC (Pollution Under Control) certification of petrol driven vehicles which tests for carbon monoxide and hydrocarbonsD. Permission to use only pure diesel with a maximum of 500 ppm sulphur as fuel for vehicles
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