India needs to “decarbonise” its transport sector quickly as the country has the potential to be a global torch-bearer in bio-fuels, Union Minister Nitin Gadkari said on Sunday. Speaking virtually at the Sugar and Ethanol Conference organised by Chini Mandi, he said 80 per cent of the energy requirement of the Indian transport sector was being fulfilled through import of fossil fuels like petrol, diesel etc, which was costing the country more than Rs 16 lakh crore annually.