(1) The Central Government may, by order, direct that any power or duty which by this Act or by any rule made under this Act is conferred or imposed upon the Central Government shall, in such circumstances and under such conditions, if any, as may be specified in the direction, be exercised or discharged also—
         (a) by any officer or authority subordinate to the Central Government, or
         (b) whether or not the power or duty relates to a matter with respect to which a State Legislature has power to make laws, by any State Government or by any officer or authority subordinate to such Government, or
         (c) by any other authority.
     (2) The State Government may, by order, direct that any power or duty which by this Act or by any rule made under this Act is conferred or imposed on the State Government or which, being by this Act or any such rule conferred or imposed on the Central Government, has been directed under sub-section (1) to be exercised or discharged by the State Government, shall, in such circumstances and under such conditions, if any, as may be specified in the direction, be exercised or discharged by any officer or authority not being (except in the case of a Union territory) an officer or authority subordinate to the Central Government.