The Trinamool Congress, led by Mamata Banerjee, has fractured into three separate factions just weeks after the announcement of election results in West Bengal. The party, which had ruled the state for 15 consecutive years, disintegrated within 28 days of its defeat. Most state legislators have formed a new bloc under Ritabrata Banerjee, calling themselves the 'Real Trinamool' and acting as the main opposition in the state assembly. Meanwhile, at least 20 Members of Parliament in Delhi have left to join a new party named NCPI, pledging support to the ruling NDA coalition. The original party remains under Mamata Banerjee and her nephew Abhishek Banerjee, now referred to as the 'Kalighat Trinamool'.

Analysts attribute the split to three main factors: the party’s lack of ideological foundation and dependence on populist politics, the Bharatiya Janata Party’s strategic involvement in encouraging defections, and internal discontent over Abhishek Banerjee’s corporate-style leadership. The BJP reportedly sought to replace Mamata’s confrontational politics with a more cooperative opposition in the state.

The rapid disintegration marks a major turning point for the 28-year-old party, raising uncertainty about its future political relevance in West Bengal and national politics.