The internal fissures ripping through the Trinamool Congress (TMC) exploded into a full-scale parliamentary crisis on Sunday, June 14, 2026, as a powerful dissident faction formalized a strategy to break away from the party’s central high command. The rebel camp, marshaled by several disgruntled senior lawmakers, has officially scheduled a high-stakes meeting with Lok Sabha Speaker Om Birla for Monday morning to demand formal recognition as a separate parliamentary group. Claiming the allegiance of a “substantial number” of sitting TMC MPs, the faction aims to bypass the rigorous penal disqualifications of the Tenth Schedule (Anti-Defection Law) by proving they hold a definitive two-thirds legislative majority of the party’s elected lower-house strength. In Kolkata, the core leadership under West Bengal Chief Minister Mamata Banerjee moved swiftly to contain the damage, fiercely condemning the mutiny as a treasonous conspiracy orchestrated to erode the regional party’s formidable clout in New Delhi. While the TMC high command prepares a slate of immediate suspension notices and legal counters, the outcome of Monday’s memorandum submission remains heavily dependent on the Speaker’s structural ruling, a decision that could radically alter national opposition alignments and shift the power balance within West Bengal’s hyper-polarized political ecosystem.