(1) The Board may, with the previous sanction of the Central Government, by notification in the Official Gazette, make regulations not inconsistent with the provisions of this Act and the rules made thereunder, to provide for all matters for which provision is necessary or expedient for the purposes of giving effect to the provisions of this Act.
     (2) In particular, and without prejudice to the generality of the foregoing powers, such regulations may provide for all or any of the following matters, namely:--
         (a) the times and places at which meetings of the Board or any committee thereof, shall be held and the procedure to be followed thereat, and the number of members which shall form a quorum at a meeting under sub-section (10) of section 4;
         (b) the method of appointment, the conditions of service and the scales of pay and allowances of any of the officers and other employees of the Board under sub-section(6) of section 7;
         (c) generally, for the efficient conduct of the affairs of the Board.
     (3) The Central Government may, by notification in the Official Gazette, modify or rescind any regulation sanctioned by it and the regulation so modified or rescinded shall have effect only in such modified form or be of no effect, as the case may be; so however, that any such modification or rescission shall be without prejudice to the validity of anything done under the regulation before its modification or rescission.