The DMK may have been claiming that the `200 crore paid to Kalaignar TV by Shahid Balwa’s DB Realty was an unsecured loan, but the CBI investigation has established that the DMK-owned TV channel — in which party MP Kanimozhi is a stakeholder — returned the first installment of the purported loan on the day former Telecom Minister A Raja was interrogated by the CBI on December 24, 2010 in connection with the 2G scam.