New Delhi, June 1 -- India is expected to roll out a mandate for blending isobutanol with diesel as early as this year. According to Road Transport and Highways (MoRTH) Secretary V Umashankar, this initiative could have a greater effect on the country's energy security than ethanol blending in petrol, as diesel consumption is almost double that of petrol.

Speaking on Friday, MoRTH Secretary V Umashankar said the proposed measure would support efforts to decarbonise highways and transportation while decreasing dependence on conventional fossil fuels.

Addressing the 'CII Multimodal Transportation and Logistics Summit', Umashankar further said that the highways ministry may soon bring a draft notification on truck-trailer interchangeabilit...