BJP on Wednesday took its grievances against Prime Minister Manmohan Singh and Congress-led UPA to President Pranab Mukherjee, demanding his intervention on the coal allocation issue and attacks on a constitutional institution like CAG.

BJP Parliamentary Party chief L.K. Advani, Leader of the Opposition in Lok Sabha Sushma Swaraj, her Rajya Sabha counterpart Arun Jaitley and Public Accounts Committee chairperson Murli Manohar Joshi met Mukherjee and submitted a memorandum expressing 'deep anguish and profound concern' over the Prime Minister and Congress questioning the CAG report on coal scam.

"MPs and high functionaries belonging to the Congress party and the Prime Minister himself have gone public in criticising the CAG's report. Motives, including that of having political ambitions, have been openly attributed to the CAG.''

''What is most shocking are the statements of the Prime Minister in Parliament and public on August 27," the party said in the memorandum.

BJP alleged that CAG's authority in conducting performance audit has been challenged several times.

"In Parliament, the Prime Minister had said that the observations of CAG are clearly disputable and further that CAG's findings are flawed on multiple counts," it said.

Talking to reporters later, Advani maintained that the BJP delegation met the President as "it is his duty as defender of the Constitution" to look into the matter.

"When the Prime Minister himself uses such language it gives a license to his followers to do so too," he said. Mukherjee heard the views of the BJP leaders patiently and promised to look into the matter, he said.

BJP also referred to a press release from PMO on August 27 itself stating that the observations of CAG were disputable and that they will be challenged when the matter comes before PAC.

"The Prime Minister, occupying the high constitutional position, by issuing such a statement is in fact converting a bipartisan discussion in PAC into a highly polarised partisan debate. This will render PAC totally dysfunctional. The consequences are fraught with grave dangers to all forms of financial accountability," it said.

The party also cautioned that continuance of this practice will mark the end of parliamentary system of a functioning democracy.

"We told the President that we have come to you as our concern is that when constitutional institutions are weakened or not given due respect your intervention is required... Our opinion is that your intervention becomes important. You should advice the government that it is not right for it to do this," Advani told reporters here.

He cited examples from the past concerning attacks on CAG and the role played by President Rajendra Prasad, Vice-President S. Radhakrishnan, Jawaharlal Nehru and by the Lok Sabha Speaker in 1960 in a bid to drive home his point.

Mukherjee's own comments as Finance Minister on institutions like CAG at the Annual General Meeting of Asian Development Bank in 2011 at Hanoi also formed a part of the BJP memorandum.

"Indian governance system is fortified with strong checks and balances through institutions such as PAC and government auditor CAG," Mukherjee was quoted as having said.

Joshi, who was a part of the BJP delegation, is the chairperson of PAC.