Cost and fees payable on issue of written notice of demand.

(1) Any cost or fee recoverable by the State Government under section 3 shall become payable to them, on the person concerned being served with a written notice of demand issued by such Government in accordance with the terms thereof. (2) Such cost or fee shall carry interest, from the date on which it becomes payable, at such rate as may be notified by the State Government in that behalf.