Saradha group CMD Sudipta Sen and executive director Debjani Mukherjee were questioned together for the first time by police today. Sen broke down in front of the interrogators when Mukherjee blamed him for the company going bust, police sources said. Mukherjee, who has been "cooperating" with the police since she was arrested, is likely to become an approver. Officials earlier said that Mukherjee could become approver only after the police verify her statements. In the last two weeks of police custody, Mukherjee has helped investigators trace several documents and trace the money trail of Sen's empire.