Delhi becomes 1st city to switch to cleaner petrol, diesel
Delhi has become the first Indian city to upgrade to "ultra-clean" Euro-VI grade petrol and diesel from Euro-IV grade fuels. The newer fuel, which went on retail sale on Sunday, is expected to combat air pollution by reducing sulphur emissions by around 80%. The price of the new fuel would reportedly be 50 paise/litre more than the present rate.