Section 4(2)(vi) in Bihar Home Guards Service Rules, 2005
(vi)Promotion to the post of Company Commander (Armourer) will be done from Havildar (Armourer) Grade I as per seniority and fitness. 50% posts of thecadrestrength of the Company Commander will be filled up by promotion on the basis of a joint seniority list of Havildar (Clerk) Grade I, Havildar (Instructor) Grade I andJamadarHead Clerk as per seniority and fitness. Promotion to the post of Company Commander (Transport) will be done from the Havildar (Driver) Grade J as per seniority and fitness.