(1) The State Government shall prescribed model rosters indicating the number of posts and services to be reserved for the Socially and Educationally Backward Classes and the number to be left unreserved :
Provided that no such roster shall operate after the required percentage of the reservation is achieved in a grade or cadre and the posts released thereafter by retirement, resignation, promotion or otherwise of the persons belonging to the unreserved or reserved category, as the case may be, are to be filled up by appointment of person belonging to the respective category, so that the prescribed percentage of reservation is maintained.
(2) The appointing authorities shall maintain rosters in the prescribed form.
(3) The rosters shall be consulted for ascertaining the number of posts reserved but the appointments shall be made in order of merit as shown in the select list.
5. If, in any recruitment year, the number of candidates from Socially and Educationally Backward Classes is less than the number of posts reserved for them, the remaining posts shall be filled up by the candidates belonging to unreserved category after de-reserving the posts in the prescribed manner and the posts so de-reserved may be carried forward to subsequent three years of recruitment.