Section 6(3) in Bihar Information Clerk Cadre (Recruitment and Service) Rules, 2010
(3)The promotion of first level (in Senior Division Clerk) shall be made on the basis of seniority-cum-merit of basic grade. Promotion of Second level (Principal information clerk) and Third level (Office Superintendent) shall be on the basis of merit-cum-seniority. Promotion of all levels be considered on the recommendations of the Departmental Promotion committee.
