Section 63: -

In this Part of this Act, unless the context otherwise requires-(a) any reference to "ex-officio member" shall be construed as a reference to a person who is a member by virtue of his holding or performing the functions of an office in the public service of a state ;
(b) "office" means an office in the public service of a State; and
(c) any reference to "member" of any of the bodies established by section 55 of this Act shall be construed as including a reference to the Chairman of that body