The BJP's victory in last week's West Bengal state election marks one of the most consequential political realignments in contemporary Indian politics. Regional parties and regional coalitions have ruled West Bengal for nearly 49 years, from 1977 to May 2026. This includes 34 consecutive years of the Left Front (19772011) and roughly 15 years under the All-India Trinamool Congress (TMC) (20112026). This victory for the BJP clearly signals that…