(1) Where, in determining the amount of loan as referred to in Section 45, it becomes necessary to ascertain whether a document is genuine or fake, the authority ascertaining the amount of loan may ascertain the same pursuant to the prevailing law. (2) Where any document executed prior to the commencement of this Section and produced in the course of determination of a loan pursuant to Section 35 does not bear the revenue stamp, the prescribed authority may, notwithstanding anything contained in the other prevailing laws of Nepal, get the revenue stamp affixed to that document pursuant to law and take action on that document.