"I know I am here in the country''s one of the biggest scam case. I am not joking but with due respect to CBI, even a sub-inspector of Tilak Marg police station here will not write or file such a charge sheet unless or until he has something wrong in his mind," Raja told Special CBI Judge O P Saini.
The DMK leader said he did not violate norms regarding the roaming facility and this was existing even before he took over the charge as Telecom Minister.
"I did not violate norms regarding roaming facilty. CBI should prove that before I took charge as Telecom Minister, roaming facility was unknown to this country. But if I prove that roaming was already existing here and it was approved by Telecom Regulatory Authority of India (TRAI), then there is nothing against me," Raja, who argued himself, said.
He said his actions on roaming facilities were as per TRAI guidelines.
CBI, which referred to a letter of April 24, 2008, of the TRAI chairman in its charge sheet, did not file it on the court'' record till date, he said.
"CBI is interpreting from the letter of the TRAI Chairman that I breached the norms by violating TRAI Act but is not filing it in the court. I want to accuse CBI that it is willfully not submitting full documents which will show the real interpretation of the documents," he said.
The court was hearing arguments on a Law Ministry report which said a firm should have more than 10 per cent stake in another for being its ''associate''.