The BJP has achieved a significant milestone by securing a victory in West Bengal in 2026, completing its symbolic arc across eastern India with control in Bihar, Bengal, and Odisha. This win consolidates a long-standing political project, marking a sharp turnaround for the party after a Lok Sabha setback and expanding its national reach.

Bengal has witnessed a seismic political shift as the BJP surged to power, unseating Mamata Banerjee's Trinamool Congress after 15 years. The saffron party secured a decisive victory, breaching the majority mark and fulfilling Amit Shah's ambitious target. This marks a significant change in the state's political landscape, ending decades of Left and TMC dominance.

Exit polls for five assembly elections proved indicative, not definitive, as results day revealed surprising outcomes. While some projections accurately predicted trends in Kerala and Assam, West Bengal and Tamil Nadu witnessed dramatic shifts, with unexpected victories and significant political realignments challenging pre-election forecasts.