12. The balance-sheet, profit and loss account, revenue account and profit and loss appropriation account of every insurer, in the case of an insurer specified in sub-clause (a)(ii) or sub-clause (b) of clause (9) of section 2 in respect of all insurance business transacted by him, and in the case of any other insurer in respect of the insurance business transacted by him in Bangladesh, shall, unless they are subject to audit under the Companies Act, 1913, be audited annually by an auditor, and the auditor shall in the audit of all such accounts have the powers of, exercise the functions vested in, and discharge the duties and be subject to the liabilities and penalties imposed on, auditors of companies by section 145 of the Companies Act, 1913.