The Bharatiya Janata Party's (BJP) decisive victory in the 2026 West Bengal Assembly elections is poised to reshape India-Bangladesh relations, particularly in areas like border security and the long-awaited Teesta water-sharing agreement. This election ends the Trinamool Congress's 15-year governance and aligns both the central and state governments under the BJP, which may facilitate coordination on critical issues. The 2,216-kilometre border between India and Bangladesh is crucial, as it has historically been associated with illegal immigration and smuggling. The BJP's leadership is expected to prioritize border fencing and security measures, addressing concerns over demographic changes in border districts. Additionally, the Teesta water-sharing dispute, which has lingered for decades, may see renewed negotiations. Former TMC leader Dinesh Trivedi's appointment as India's High Commissioner to Bangladesh is significant, as it could improve diplomatic ties and understanding of regional sensitivities. Overall, the BJP's win could lead to smoother trade and connectivity initiatives, while the future of India-Bangladesh relations will depend on how both governments navigate these pressing issues.