New Delhi, Aug 25 - The Reliance Anil Dhirubhai Ambani Group has asked the oil ministry to appoint an expert panel to revaluate the high capital expenses claimed by Mukesh Ambani-led Reliance Industries for the Krishna-Godavari gas basin.

The group, which is waging a legal battle with Reliance Industries over the gas from the fields at their agreed price of $2.34 per unit, has also sought speedy conclusion of an audit by the Comptroller and Auditor General of India (CAG).

In a letter to Petroleum Secretary R.S. Pandey, the Anil Ambani group said the high capital cost of nearly $9 billion was questioned by numerous officials and government offices, including Cabinet Secretary K.M. Chandrasekhar.

Others who questioned it included the chairman of the Prime Minister's Economic Advisory Council, C. Rangarajan, the letter said, adding doubts were also raised over the independence of those who approved the capital expenditure.

'It is therefore astonishing that Reliance Industries has chosen to dismiss the opposition by large sections of the government to the apparent inflation in capex as being motivated by vested interests,' the letter said.

The letter went on to add there was no independent verification of capital costs by any agency other than by the management committee, which includes representatives of the contractor -- which is Reliance Industries.