The former Telecom Minister A Raja has said that he will appear before the CBI tomorrow morning in connection with 2G spectrum allocation issue. He said, a request was made to the agency in this regard and they accepted it. Mr Raja, who arrived in the capital last evening told reporters in Chennai that he will cooperate with the investigating agency. The former telecom minister A. Raja was issued summons on Monday along with corporate lobbyist Niira Radia to appear before the agency.