Sen, along with Saradha group director Debjani Mukherjee and Arvind Singh Chouhan, who looked after the group's operations in Jharkhand, were produced before the court of Additional Chief Judicial Magistrate, Bidhannagar, A H M Rahman, who remanded them after the expiry of their 14 days police custody.
They were given nine days police custody till May 18 in fresh cases and 14 days judicial custody till May 23 in earlier cases.
Later, while being taken away from the court, Sen told reporters that he would speak after the investigation ended.
"I will speak. Wait for sometime. Let the investigation be over. I will speak," Sen said.
Sen had written a letter to CBI last month complaining of blackmail by 22 persons, including two TMC MPs.
