Section 6(1)(i) in Bihar Home Guards Service Rules, 2005
(i)Only such personnel of the Havildar (Clerk)/ havildar Instructor/Havildar Grade I, who for two continuous years have satisfactorily discharge the account work and whose service particulars and performance during the said period have been found satisfactory, will be permitted by Commandant General to appear in Departmental Accounts examination. After being successful in the Accounts examination they will be considered for selection to the post of Jamadar Head Clerk, according to seniority, fitness and roster points.