A letter signed by TMC MPs who are said to be rebelling against party chief Mamata Banerjee has surfaced online. As many as 20 MPs, including prominent figures such as Yusuf Pathan, Prasun Banerjee and Sayoni Ghosh, reportedly signed the letter, with the party appearing headed for a vertical split. Other MPs include Kakoli Ghosh, Satabdi Roy and June Maliah.