law: 3[50. Consolidated rates for combination of services.-
  The Authority may, from time to time, by notification in the Official Gazette, frame a consolidated scale of rates for any combination of service specified in section 48 or for any combination of such service or services with any user or permission to use any property belonging to or in the possession or occupation of the Board, as specified in section 49 or the fees to be charged for pilotage, hauling, mooring, re-mooring, hooking, measuring and other services rendered to vessles as specified in section 49A or the port dues to be fixed on vessles entering the port and for the duration of such dues as specified in section 49B.