Former Congress Member of Parliament Matang Singh was on Saturday arrested by the Central Bureau of Investigation (CBI) in connection with the Saradha chit-fund scam.
Singh had, however, earlier in the day claimed that he has been summoned by the CBI as a witness in the case.
"I have come here under 160 CrPC like a witness," he said.
The CBI has so far questioned several Trinamool Congress (TMC) leaders in connection with the Saradha chit-fund scam.