Ethanol is a cleaner option as far as emissions are concerned compared with gasoline.
"I've told my officials to expedite work on this so that I can announce this before Jan. 26. These vehicles can run entirely on ethanol but will also have an option of flex-fuel," Gadkari told a conference of sugar producers.
He said India can take a leaf out of Brazil's book, as flexible-engine vehicles are very popular in the Latin American country.