The Central Government may make regulations not inconsistent with this Act, to provide for all or any of the following matters, namely:(a)enabling or requiring a qualified person to be transferred to any branch of the Armed Forces of the Union or to any other branch of national service;(b)examination of physical and mental fitness of qualified persons subject to registration under this Act;(c)determination of the categories in which qualified persons whose physical and mental fitness has been examined shall be placed by reference to their physical or mental conditions or both;(d)specification of the principles to be applied and the circumstances to be considered while hearing an application for the grant or renewal of a postponement certificate;(e)specification of the period for which a postponement certificate may be granted or renewed;(f)any other matter for which regulations are required to be,or may be, made under this Act,
