In a big blow to Mamata Banerjee, two of her West Bengal MLAs and at least 50 TMC councillors on Tuesday defected to the BJP just days after the saffron party made significant inroads in the state. A CPM MLA has also jumped ship to the BJP. BJP leader Mukul Roy’s son Subhrangshu, who was suspended by the Trinamool for six years for “demeaning the party”, Trinamool MLA Tusharkanti Bhattacharya and CPM legislator Debendra Nath Roy are among those who have joined the saffron party.