Public Accounts Committee (PAC) Chairman Murli Manohar Joshi today dismissed allegations by former auditor R P Singh that he tried to influence the outcome of the 2G report as an attempt to malign the institutions of CAG and PAC.

"R P Singh's allegations on the 2G report are an attempt to malign Comptroller and Auditor General (CAG) and PAC by vested interests including the government," Joshi said.

Giving a twist to the allocation controversy, Singh, a former CAG official, had questioned CAG's estimates of presumptive loss of Rs 1.76 lakh crore. "After completing the audit of Ministry of Telecom, which was under my direct charge, I prepared a draft audit report covering each and every aspect ... My report did not contain any loss figure," he had said yesterday.

Joshi said Singh had never raised the issue when he had appeared before PAC to explain the loss to the exchequer caused by the 2G spectrum allocation. "I wonder why he is speaking today," he said.

"Singh had made a similar statement after his retirement. But when we questioned him he denied giving any interview. He was questioned on the issue by the Joint Parliamentary Committee as well but he failed to prove anything," Joshi said.