Kolkata/New Delhi, June 24 -- The Trinamool Congress led by Mamata Banerjee and a rebel bloc led by West Bengal leader of the opposition Ritabrata Banerjee filed competing national working committee lists with the Election Commission of India (ECI) on Tuesday, claiming legal control of the party, initiating a formal dispute over the party's name, assets, and election symbol. On Monday afternoon, the rebel faction, claiming the support of 65 of the party's 80 legislators, held a session at a hotel in New Town, Kolkata. The legislators voted via voice vote to remove party founder Mamata Banerjee from the post of party chairperson, electing Howrah Central legislator Arup Roy to the position. Roy served as a minister in the Trinamool Congress government from 2011 to 2026. The rebels cited a constitutional crisis under Article 20 of the party constitution, stating that the three-year tenure of the previous national working committee formed in February 2022 had expired. The group's MLAs visited the West Bengal chief electoral officer on Tuesday evening to submit a letter demanding recognition as the official All India Trinamool Congress and rights to the twin-flower election symbol. Ritabrata Banerjee stated outside the office: "I cannot comment on the letter they submitted to the EC but by now people have seen that every time they form a new committee the members resign and leave. I can say for sure that the majority of the TMC MLAs are with us." To counter the move, Mamata Banerjee's camp sent a revised list to the ECI on Monday night, marked "as on June 20, 2026," retaining her as chairperson and Abhishek Banerjee as national general secretary. A Trinamool Congress member of parliament, who asked not to be named, stated that the document names Subrata Bakshi as vice-president, Derek O'Brien and Dola Sen as joint secretaries, and former MP Subhasish Chakraborty as treasurer. Aroop Biswas was dropped from this revised list. The Mamata Banerjee camp described its submission as the "original but minority" list, acknowledging its numerical weakness within the legislative wing. Leaders and legislators began joining the rebels after the party lost to the Bharatiya Janata Party (BJP) in the assembly polls. An initial committee formed by Mamata Banerjee earlier this month collapsed after former ministers Firhad Hakim and Aroop Biswas defected to the rebel faction. The rebel faction's submission to EC names a national working committee expanded from 10 to 30 members, listing Firhad Hakim, Aroop Biswas, Rathin Ghosh, and Sabina Yasmin as vice-chairpersons. On Monday, Ritabrata Banerjee also named himself, Biplab Mitra, Javed Khan, and Sandipan Saha as general secretaries, and Akhruzzaman Ansari as treasurer. The rebel faction holds 81% of Trinamool Congress legislators and 71% of its Lok Sabha members. This follows a declaration in Delhi by 20 Trinamool Congress Lok Sabha members that they had joined the Nationalist Citizens Party of India (NCPI) and would support the NDA, attributing the crisis to Abhishek Banerjee's style of working....