Opinion: With Trinamool Exodus, Bengal's Political Culture Enters New Phase

Updated: Jun 12, 2026 19:29 pm IST Published On Jun 12, 2026 19:16 pm IST Last Updated On Jun 12, 2026 19:29 pm IST

Published On Jun 12, 2026 19:16 pm IST

Last Updated On Jun 12, 2026 19:29 pm IST

Just over a month after the 2026 West Bengal Assembly election results on May 4 delivered a stunning defeat to the All India Trinamool Congress (TMC), the political landscape in the state has transformed dramatically. The Bharatiya Janata Party (BJP) secured a landslide win with 208 seats, ending the Trinamool's 15-year rule and reducing Mamata Banerjee's party to around 80 seats. What followed was not post-poll reflection but a rapid, multi-level exodus from the party. Rebel groups emerged swiftly, with around 60 of the 80 MLAs aligning under figures like Ritabrata Banerjee. Roughly 20 of the 28 Lok Sabha MPs, led by Kakoli Ghosh Dastidar, moved to support the ruling National Democratic Alliance (NDA). Over 100 councillors have also resigned or switched sides.

This is no ordinary wave of opportunism. It reflects the deep-seated political culture of West Bengal, where power has historically concentrated in one party. Successive regimes -- Congress post-Independence, the Left front (led by CPI(M)) for 34 years until 2011, and then the Trinamool -- have relied on total control, patronage and grassroots absorption rather than ideological loyalty. A defeat triggers not a gradual decline but systemic collapse, as cadres, local bodies, and leaders realign for survival. The current exodus, spanning from national to village levels, signals this culture entering a new phase under the BJP's consolidation. It underscores how Bengal's politics rewards winners with wholesale loyalty while punishing losers with dissolution, a pattern etched since Independence.

Bengal's All-or-Nothing Politics

After Independence, the Indian National Congress held sway under leaders like Bidhan Chandra Roy, but was fragmented by the late 1970s amid economic challenges and anti-incumbency. The Left Front, anchored by the CPI(M), then ruled uninterrupted from 1977 to 2011, forging deep grassroots networks through land reforms, patronage distribution, and local muscle. This created a system where alignment with the ruling party determined access to resources, jobs, and protection. Congress withered, with its vote share today hovering below 3 per cent in many areas.

The Trinamool's rise in 2011 mirrored this pattern but accelerated it. Banerjee's party, lacking a robust independent organisation, absorbed vast swathes of Left cadres, panchayat structures, and local influencers en masse. By 2016, it had built booth-level dominance not through organic growth alone but by inheriting and repurposing the Left's machinery. Entire local bodies shifted allegiance once they captured districts and state power. This top-down absorption ensured control over police, administration, civic bodies, and welfare schemes. Bengal became a state with chronic unemployment. Trade unions, auto unions and even daily survival hinged on the........

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