law: The Comptroller and Auditor-General's (Duties, Powers and Conditions of Service) Act, 1971
  16. Audit of receipts of Union or of States.-
  It shall be the duty of the Comptroller and Auditor-General to audit all receipts which are payable into the Consolidated Fund of India and of each State and of each Union territory having a Legislative Assembly and to satisfy himself that the rules and procedures in that behalf are designed to secure an effective check on the assessment, collection and proper allocation of revenue and are being duly observed and to make for this purpose such examination of the accounts as he thinks fit and report thereon.