Section 27(1) in The Bihar Civil Service (Executive Branch) and the Bihar Junior Civil Service (Recruitment) Rules, 1951
(1)Promotion to Senior Selection Grade shall be made from amongst the officers whose names find place in the select list mentioned in sub-rule (2) of this Rule in the order in which the names of officers are arranged in the said list, so however, that due representation in promotion to Senior Selection Grade is accorded to the officers belonging to Scheduled Castes and Tribes in accordance with the reservation rules in force.
