The 2026 Assembly elections in West Bengal, Tamil Nadu, and Assam have significantly altered the political landscape, revealing fractures within major alliances. In West Bengal, the BJP achieved a historic victory, winning over 200 seats in the 294-member Assembly, ending the long-standing rule of the Trinamool Congress (TMC). This result has sparked debates within the INDIA bloc regarding opposition unity and campaign effectiveness, with BJP leaders claiming it exposed 'deep cracks' in the alliance. In Tamil Nadu, actor-turned-politician C Joseph Vijay's Tamilaga Vettri Kazhagam (TVK) emerged as the largest party with 108 seats but fell short of a majority. The ruling DMK-led Secular Progressive Alliance suffered significant losses, winning only 59 seats, while the AIADMK-led NDA could not regain power, highlighting challenges for both national coalitions in adapting to regional aspirations. In Assam, the BJP-led NDA comfortably retained power, reinforcing Chief Minister Himanta Biswa Sarma's leadership, but the results underscored the opposition's inability to present a unified challenge. Collectively, these outcomes raise critical questions about alliance management and strategy as India approaches future national elections.