Bengaluru: Union minister Pralhad Joshi Tuesday offered to send an oil marketing company (OMC) officer for joint testing of fuel samples with Karnataka govt officials, challenging state. Union Minister Pralhad Joshi rejected Karnataka's claims of excessive ethanol blending in petrol as sensationalist, affirming that OMC tests confirm compliance with standards and highlighting. Ethanol blended petrol Karnataka dispute intensifies as the state seeks independent testing of alleged excess ethanol in E20 fuel.