The CBI is likely to seek an extension of remand of former Telecom Minister A Raja in the special court later today. He along with DB Realty Managing Director and promoter of Swan Telecom Ltd Shahid Balwa will be produced in the court. The CBI probing the multi-crore 2G Spectrum scam, questioned former telecom Minister A Raja and Shahid Balwa. AIR correspondent quoting CBI sources reports the agency has got some specific leads in the case. Now the investigative agency is focusing to establish the money trail in the 2G Spectrum scam.