Karnataka Chief Minister Siddaramaiah has written to Prime Minister Narendra Modi, stating that the state will not approve the Goa-Tamnar power transmission project until Goa lifts its objections to the long-delayed Kalasa-Banduri Nala Diversion Project. In the letter, Siddaramaiah highlighted that Karnataka’s consent for the power transmission project is contingent upon the Prime Minister's intervention in resolving the issues surrounding both projects.

The Goa-Tamnar project, which involves constructing a 400 kV D/C quad transmission line, requires diverting 174.7 hectares of forest land in Karnataka, including areas of the Anshi-Dandeli Tiger Reserve. The 94 km line would connect the Narendra power grid in Dharwad to Xeldem in Goa. Despite assurances that the project would have minimal environmental impact, Karnataka has now withheld its approval in light of Goa's opposition to the Kalasa-Banduri project.

The Kalasa-Banduri Nala project, which aims to divert water from the Mahadayi River to supply drinking water to parts of Karnataka, has faced significant resistance from Goa, mainly due to concerns over environmental impacts. Siddaramaiah urged the Centre to facilitate the long-pending National Board of Wildlife (NBWL) approval for Kalasa-Banduri, noting that inter-state cooperation and intervention from the Centre are necessary.

Despite the NBWL standing committee recently recommending the Goa-Tamnar project for wildlife clearance, the Kalasa-Banduri project remains stalled due to Goa’s objections and an ongoing Supreme Court case. Karnataka's decision to withhold approval for the power transmission project adds pressure on both states to resolve their disputes.