Mr Mitra, who was earlier named in the Saradha ponzi scam and spent several months in judicial custody, was probed to ascertain his involvement in the Narada tapes scam, CBI sources said.
Besides Mr Mitra, names of several other Trinamool Congress leaders had figured in the alleged Narada tapes scam.
The Narada tapes scam purportedly showed the Narada News CEO Matthew Samuels posing as a businessman and allegedly offering money to several TMC leaders.
Mr Mitra had served the first Trinamool Congress government of Mamata Banerjee in the capacity of Sports and Transport ministers.
Both the CBI and the Enforcement Directorate are concurrently probing the Narada tapes scam.