Indian Oil Corporation Limited denied these claims, citing tests across multiple states, including Karnataka, which showed ethanol levels within the regulated range. Major oil companies have suggested joint testing with the state government to ensure transparency and address the matter.
controversy arises in karnataka over ethanol blending exceeding e20 limits in petrol
The Karnataka government has raised concerns after fuel samples revealed ethanol levels as high as 31.2 percent, surpassing the mandated E20 limit of 20 percent. Tests from seven districts, including Bengaluru, indicated excess ethanol blending, leading to worries about safety, vehicle maintenance, and mileage.

