Section 11(1) in Bihar Secretariat Service Rules, 2010
(1)In accordance with section-14 of the Act, 80% of the posts in the grade of Section Officer shall be filled by promotion from the grade of Assistant on the recommendation of departmental promotion committee and remaining 20% of posts shall be filled through a limited competitive examination conducted by Bihar Public Service Commission amongst such Assistants who are confirmed in the service and have rendered continuous service of more than five years.
