28. Power to make regulations.-
A Board may make regulations, not inconsistent with this Act, to provide for any one or more of the following matters, namely:-
(a) the appointment, promotion, suspension, 4[reduction in rank, compulsory retirement,] removal removal and dismissal of its employees;
(b) their leave, leave allowances, pensions, gratuities, compassionate allowances and travelling allowances and the establishment and maintenance of a Provident Fund or any other fund for their welfare;
(c) the terms and conditions of service of persons who become employees of the Board under clause (f) of sub-section (1) of section 29;
(d) the time and manner in which appeals may be preferred under sub-section (2) of section 25 and the procedure for deciding such appeals;
(e) any other matter which is incidental to, or necessary for, the purpose of regulating the appointment and conditions of service of its employees.