Section 18

Without prejudice to the generality of section 17, where, by any written law, power is given to any of the persons mentioned in the first column of the Schedule to make any regulation or order or give any direction, approval, permission or consent, or where any document is required to be under the hand of, or signed by such person it shall be sufficient, unless it is otherwise expressed, for such regulation, order, direction, approval, permission, consent or document to be signified under the hand of, or signed or countersigned by, the person mentioned in the second column of the said Schedule or such officer as may be designated in that behalf, either generally or specially, by the person mentioned in the first column of the said Schedule by notification in the Gazette.