Article 149 of the Constitution mandates the CAG to audit government accounts and report on them.
The CAG audits all expenditure from the Consolidated Fund of India and the Contingency Fund of India, as well as the Public Accounts of India. Similarly, for states, all expenditure from their Consolidated Fund and Contingency Fund, and Public Accounts are audited. Therefore, statement (i) is incorrect as the CAG audits the Contingency Fund of India.
The CAG prescribes the form in which accounts of the Union and States are to be kept, after consulting the President or the Governor of a State, respectively. This aligns with statement (ii).
The CAG submits audit reports relating to the accounts of the Union to the President, who shall cause them to be laid before each House of Parliament. For the States, the CAG submits audit reports to the Governor of the State, who shall cause them to be laid before the State Legislature. Therefore, statement (iii) is incorrect because state audit reports are submitted to the Governor, not the President.
The CAG is empowered to certify the net proceeds of any tax or duty, which forms the divisible pool between the Union and the States. This certificate is considered final and binding, supporting statement (iv).
The CAG's reports are presented to Parliament (or State Legislature) and are then examined by the Public Accounts Committee (PAC) and the Committee on Public Undertakings (COPU), which are parliamentary committees.
CAG also audits receipts of the government, including revenue from taxes, duties, and other sources.