Notwithstanding anything to the contrary contained in this Act,
         (a) a State Electricity Board constituted under the repealed laws shall be deemed to be the State Transmission Utility and a licensee under the provisions of this Act for a period of one year from the appointed date or such earlier date as the State Government may notify, and shall perform the duties and functions of the State Transmission Utility and a licensee in accordance with the provisions of this Act and rules and regulations made thereunder:
         Provided that the State Government may, by notification, authorise the State Electricity Board to continue to function as the State Transmission Utility or a licensee for such further period beyond the said period of one year as may be mutually decided by the Central Government and the State Government;
         (b) all licences, authorisations, approvals, clearances and permissions granted under the provisions of the repealed laws may, for a period not exceeding one year from the appointed date or such earlier period, as may be notified by the Appropriate Government, continue to operate as if the repealed laws were in force with respect to such licences, authorisations, approvals, clearances and permissions, as the case may be, and thereafter such licences, authorisations, approvals, clearances and permissions shall be deemed to be licences, authorisations, approvals, clearances and permission under this Act and all provisions of this Act shall apply accordingly to such licences, authorisations, approvals, clearances and permissions;
         (c) the undertaking of the State Electricity Boards established under section 5 of the Electricity (Supply) Act, 1948 (54 of 1948) may after the expiry of the period specified in clause (a) be transferred in accordance with the provisions of Part XIII of this Act;
         (d) the State Government may, by notification, declare that any or all the provisions contained in this Act, shall not apply in that State for such period, not exceeding six months from the appointed date, as may be stipulated in the notification.