Bidhannagar Police arrested suspended Trinamool Congress MP Kunal Ghosh in connection with the Saradha Group ponzi scam on Saturday. Fresh evidence shows the involvement of Ghosh, CEO of Saradha Group's media arm, in the conspiracy along with chairman Sudipta Sen, said DCP Arnab Ghosh. Kunal Ghosh had filed a FIR against Arnab Ghosh at the same police station that afternoon.