Subramanian Swamy, who says he is determined to have P Chidambaram investigated for his alleged role in the telecom scam, scored big points in court today. The CBI has been ordered to share with Mr Swamy a file that has letters exchanged by Mr Chidambaram with former Telecom Minister A Raja. Mr Swamy, who is the Janta Party President, says the file with these letters was deliberately withheld from court by the CBI. "This file is very crucial for the angle of corruption in the 2G (telecom) scam," he said.