Goa's BJP Chief Minister Pramod Sawant on Friday has said that his government, "if required", would go against the NDA-led Union Environment ministry in the Mahadayi river issue. The belligerence comes after the Union Ministry of Environment, Forest and Climate Change on December 24 wrote to Karnataka stating environment clearance was not required for its Kalsa-Bhanduri drinking water project on Mahadayi river. Goa and Karnataka are embroiled in a dispute on sharing of Mahadayi river water and Goa has been opposing the Kalsa Bhanduri project.