(1) There shall be two cadres of Service, namely, Civil and Mechanical comprising various posts as may be determined separately for each cadre on the 1st day of January each year or as soon thereafter, as may be practicable according to the provisions of Appendix A. The strength of the respective cadres so determined shall remain in force till it is revised by the Government.
(2) The officers of Civil and Mechanical cadres shall be posted or appointed only against the respective posts in their cadre.
(3) Notwithstanding anything contained in sub-section (1), the Government may appoint a member of the Service to an ex-cadre post not included in the Service in accordance with the provisions of this Act, provided such post has been sanctioned.