Chairman Public Accounts Committee Dr Murli Manohar Joshi has written a letter to Lok Sabha Speaker Ms.Meira Kumar requesting her to ensure that the authority of PAC and CAG is not impinged upon by ministers. Referring to Telecom Minister Kapil Sibal's statement about CAG report, Dr.Joshi said the Telecom Ministry was given ample time to respond on the findings of the CAG .He questioned the timing of the statement when the report has already been tabled in parliament. Dr. Joshi said since the Speaker is the competent authority to guide the Public Accounts Committee, she should ensure that no such impropriety of the ministry recurs.