Kochi, Nov 7 (UNI) Three public sector oil marketing companies (OMCs) - Indian Oil Corporation Limit

Kochi, Nov 7 (UNI) Three public sector oil marketing companies (OMCs) - Indian Oil Corporation Limited (IOCL), Bharat Petroleum Corporation Limited (BPCL) and Hindustan Petroleum Corporation Limited (HPCL) - have challenged Karnataka's reported findings of excessive ethanol content in petrol, maintaining that their supplies across the country comply with the prescribed E20 fuel quality standards. The companies said 893 samples collected from their depots and retail outlets across 27 States and union Territories, including 56 from Karnataka, had been tested and found within the stipulated ethanol content range of 19 to 21 per cent, a release said. All 56 samples…