The legislative wing of the Trinamool Congress, the party that has governed West Bengal for the past 15 years under Mamata Banerjee's leadership since its formation on January 1, 1998, experienced a significant split on Wednesday. Fifty-eight Trinamool MLAs submitted a letter to Assembly Speaker Rathindra Bose, nominating first-time MLA Ritabrata Banerjee as the Leader of the Opposition (LoP). This move came more than three weeks after the party leadership had nominated veteran MLA Sobhandeb Chattopadhyay for the same position. Speaker Bose accepted the rebel bloc's recommendation within hours and granted Ritabrata access to the opposition leader's chamber in the assembly.
The rebel group also proposed former ministers Javed Khan (MLA from Kasba) and Sabina Yeasmin (MLA from Sujapur), along with Seuli Saha (Keshpur MLA) and Sandipan Saha (Entally MLA), for the posts of deputy opposition leaders. Raghunathgunj MLA Akhruzzaman was nominated for the chief whip's position. Ritabrata confirmed that Speaker Bose had accepted all these recommendations. Notably, the rebel bloc includes 17 Muslim MLAs.
Legal Implications and Anti-Defection Law
By securing the support of 58 MLAs, the rebel faction has circumvented the anti-defection law, which requires the backing of at least two-thirds of a legislative party. The Trinamool Congress had won 80 seats in the recent assembly election but expelled Ritabrata and Sandipan last week, reducing its strength to 78. Thus, the rebel bloc needed support from 52 MLAs but obtained at least six more, with Ritabrata later claiming support from two additional MLAs. Wednesday's developments mean the rebel bloc is now recognized as the official Trinamool wing within the state assembly. Whether the party itself will follow the legislative wing and split falls under the Election Commission's jurisdiction.
Rebels' Stance on Leadership
Most rebels on Wednesday expressed anger toward Trinamool General Secretary Abhishek Banerjee and IPAC but emphasized that party chairperson Mamata Banerjee remains their leader. However, Ritabrata referred to Mamata as "chief adviser." He stated, "We will request her to remain our chief adviser and guide this legislative party to do constructive work inside and outside the assembly. We appeal to her to recognize us as we have a two-thirds majority. But Abhishek Banerjee has no relation with this legislative party."
The arrival of the 58 MLAs at the assembly on Wednesday morning culminated several days of fast-paced events over which Mamata Banerjee, her nephew Abhishek, and their loyalists seemed to have no control. The controversy began on May 9 when the leadership first proposed Sobhandeb's name as the assembly LoP. This led to the "Signgate" controversy after two party MLAs, Ritabrata and Sandipan, complained to the Speaker that their signatures, along with those of several others, had been forged. Chief Minister Suvendu Adhikari seized on the complaint, prompting the administration to set up a special investigation team to probe the forgery charges, in which Abhishek was named the main accused.
Reactions from Party Loyalists
Trinamool leader Kunal Ghosh questioned the legitimacy of the move, saying, "How can a person expelled by the party be LoP? How can a first-time MLA be made LoP despite the party nominating a 10-time MLA for the post? This act is not just illegal, but immoral. Trinamool will seek all legislative and legal remedies at its disposal against the Speaker's decision." Lok Sabha MP Kalyan Banerjee announced that the party would challenge the Speaker's decision in court on three grounds: first, the Speaker does not have the right to "choose" an LoP and must act based on precedence; second, an expelled MLA cannot be made that party's LoP; and third, the Speaker cannot decide which group within a party holds the majority as long as the official party has made its recommendations. "This is illegal and unconstitutional," he told the Times of India.
Earlier in the day, veteran MP Saugata Roy made a last-ditch effort to persuade Speaker Bose not to recognize Ritabrata as LoP, arguing that the Speaker must follow precedence by appointing the LoP nominated by the opposition party. He pointed out that Bose himself had referred to Chattopadhyay as LoP when the House convened to unanimously elect him as Speaker. After this argument was rejected, Kalyan Banerjee posted on social media, "Trinamool Congress workers have always stood by Mamata Banerjee, stand by her today, and will continue to stand by her in the future. They are the true strength and spirit of the party. Those who choose to betray Didi today will ultimately be judged by people. Their actions only reinforce the perception that they are no different from BJP. Mamata Banerjee's greatest strength lies in the unwavering dedication of the party's grassroots workers and supporters. It is they who will continue to strengthen the organization and carry forward its ideals with conviction and commitment."



