"I have fully cooperated with the CBI," he told mediapersons on his arrival at the Chennai airport from Delhi, two days after the agency grilled him.
The 47-year-old Dravida Munnetra Kazhagam leader declined to divulge any details about his questioning. Raja had appeared before the CBI in response to a December 20 notice summoning him, days after his residences in New Delhi and in Tamil Nadu were searched by the agency.
On December 24, he was questioned for nine hours on the controversial advancing of dates for allocation of spectrum and alleged funding of some of the telecom companies by his kin. The next day, CBI sleuths also focused on the tapped conversation of Raja with corporate lobbyist Niira Radia.Sources have said that Raja is likely to be quizzed again as he failed to give satisfactory answers to queries on the advancement of dates and the funding of some of the telecom companies. Raja was forced to resign on November 14 from the Union cabinet in the wake of a Comptroller and Auditor General report, which held that the spectrum allocation at undervalued prices resulted in a notional loss of Rs 1.76 lakh crore to the exchequer.