4. Words or expressions used in these Directions but not defined herein and defined in the RBI Act shall have the same meaning as assigned to them in the RBI Act. Any other words or expressions used in these Directions and not defined in these directions or in the RBI Actor any of the Directions issued by the Bank, shall have the meanings respectively assigned to them under the Companies Act, 1956 or Companies Act, 2013 (Act 18 of 2013) as the case may be.