1. audits and reports on all expenditures from the Consolidated Fund of India and the Contingency Fund of India and of each state to determine whether the expenditure has been done as per law.
2. audits and reports on all trading, manufacturing, profit and loss accounts etc. kept by any department of the Union or a state.
The CAG report is examined by the Public Accounts Committee of Parliament, which brings any discrepancies to the notice of Parliament and recoomends suiatble remedial action.
The President appoints the Comptroller and Auditor General for a normal term of 6 years or until 65 years of age, whichever is earlier. However, he may resign any time by writing to the President. Otherwise, the only grounds and mode for his removal are the same as that of a Supreme Court Judge i.e. on impeachment by Parliament.