New Delhi, Dec 24 (IANS) DMK leader and former communications minister A. Raja Friday reached the Central Bureau of Investigation (CBI) office in Delhi for questioning in the 2G spectrum scam.

Raja reached the CBI office at the CGO complex in south Delhi around 10.30 a.m., a CBI officer said.

Raja had come to Delhi Wednesday and said he will cooperate with the investigating agencies.

CBI earlier this month searched Raja's houses in New Delhi and in Tamil Nadu as well as the houses and business premises of his relatives and associates.

Spectrum was allotted to mobile companies at below market prices causing huge losses to the government when Raja was communications minister. He had to resign last month due to the scandal.

He has denied charges of wrongdoing. On Monday, he said he had sought time from the CBI as he had some personal work to attend in Chennai and wanted fresh dates for his questioning.

CBI has also raided the premises of corporate lobbyist Niira Radia and an NGO linked to DMK MP and Tamil Nadu Chief Minister M. Karunanidhi's daughter Kanimozhi.