Kolkata: West Bengal Chief Minister and Trinammol Congress (TMC) supremo Mamata Banerjee on Saturday announced former Rajya Sabha BJP MP and eminent journalist Chandan Mitra, former CPI(M) MP Moinul Hasan, Congresss Sabina Yasmin and Mizoram advocate-general Biswajit Deb have joined TMC. Mr Mitra, who had resigned from the Bharatiya Janata