The CBI today carried out searches in the Chennai offices of DMK first family run Kalaignar TV in connection with the 2G spectrum scam. The raids came in the wake of allegations that that there was a connection between accused Shahid Usman Balwa-promoted Swan Telecom and the channel. The searches began in the wee hours to probe certain financial transactions that could be connected to the spectrum scam.Balwa was allegedly favoured by Raja in grant of UAS licence and scarce radio waves. Officials said the crux of the probe relates to the over 200 crore rupees loan arranged by Balwa's DB Realty group for Kalaignar TV. The funds were arranged by M/s Cineyug Films from DB Group companies wherein the family members of Balwa are the directors or shareholders.Earlier on Wednesday, the CEO of the Kalaignar Sarath Kumar said in a statement that the transaction between Mumbai based firm Cine yug and Kalaignar TV was transparent and the CBI and it officials are free to visit the channels office and verify the records.Kumar had also said the sum received from Cineyug Films was an advance for transaction of shares and was returned with interest when the two parties differed over the price evaluation of shares.