Section 4(2)(v) in Bihar Home Guards Service Rules, 2005
(v)Promotion to the post of Havildar (Armourer) Grade I will be done as per seniority from fit Havildar (Armourers). Promotion to the post of Havildar (Clerk) Grade I and Havildar (instructor) Grade I will be done by seniority and fitness from the gradation list of Havildar (Clerk) and Havildar (Instructor. Promotion to the post ofHavildar(Driver) Grade I will be done fromHavildar(Driver).