R P Singh told Indian Express in a telephone interview that CAG officials had visited Joshi's residence on the Good Friday holiday on April 22, 2011.
“I got to know from my team members that CAG officials including senior CAG officials from headquarters went to the PAC chairman's residence and assisted him in preparing the PAC report. I cannot say with certainty what exactly transpired at the meeting,” Singh said.
Asked if there was an attempt by the PAC chairman to influence the outcome of the CAG's 2G report before it was tabled in Parliament, Singh said “it appears” from a note prepared by R B Sinha, D-G at CAG headquarters, that there were “some telephone calls by the PAC chairman to access the 2G report which was under preparation”.
The PAC had been examining the 2G matter since 2008. Joshi became PAC chairman in 2010. The CAG report was tabled in Parliament on November 16, 2010, and put the presumptive loss from spectrum allocation between Rs 57,666 crore and Rs 1.76 lakh crore.
On the CAG's report, Singh said: “This was not my report. It was CAG's (the institution's) report. What can I do as a subordinate when the CAG (Vinod Rai) has issued written instructions on how he wants the report?
"I sent a report which calculated a loss of Rs 2,645 crore. This was on May 31, 2010. After this my audit team was attached with CAG headquarters under Deputy CAG Rekha Gupta.
"I was not involved in the inclusion of auditing the Ministry of Finance. In July 2010, I was sent a heavily revised report, and asked to issue (it) to the Ministry of Finance and Department of Telecommunication. There was little I could do when I got a written instruction.”