(1)  If the Central Government is satisfied that it is necessary or expedient so to do, it may, by notification, amend Schedule I or Schedule II or Schedule III or Schedule IV and thereupon Schedule I or Schedule II or Schedule III or Schedule IV, as the case may be, shall be deemed to have been amended accordingly.

   (2)  A copy of every notification issued under sub-section (1), shall be laid before each House of Parliament as soon as may be after it is issued.