New Delhi, July 7 -- Union Minister for Petroleum and Natural Gas Hardeep Singh Puri on Monday said reports of customer problems with E20 fuel are a "misrepresentation", and stressed that the move to a higher E25 blend will only happen after tests are completed and discussed with automakers.

Dismissing the controversy around 20 per cent ethanol-blended petrol, Puri said both car manufacturers and consumers have accepted the fuel.

"The automobile manufacturers, as well as the people who service these vehicles, all say there is no difficulty. Why this sudden interest?" he said. "It is a misrepresentation and I don't want to use stronger words."

The Minister noted that India has been gradually increasing ethanol blending. "We have been us...