A Delhi court has summoned Comptroller and Auditor General Vinod Rai and Director CAG R P Singh to appear as witnesses on a complaint by Janata Party chief Subramanian Swamy seeking prosecution of former Telecom Minister A Raja in the 2G spectrum allocation scam. Special CBI Judge Pradip Chaddah sought presence of the top auditor and the official in the court on February 5 to depose.The order came on a private complaint by Swamy seeking registration of a criminal case against Raja for his alleged role in the scam, which, according to the CAG, caused a presumptive loss of Rs 1.76 lakh crore to the exchequer. The court had on January 7 held as “maintainable” the private complaint filed by Swamy on December 15 last year. He had made a three-fold plea, which included that his complaint be taken cognizance of and Raja be summoned to take the case to its logical conclusion.