Section 793(g) in Police Regulations, Bengal , 1943
(g)All naiks and head constables possessing certificates of drill mentioned in clause (e) shall be again deputed every five years to the College/ Headquarters of Eastern Frontier Rifles for a period of two months to refresh their knowledge in drill. A head constable who has been employed in the College during the previous five years need not be deputed for a refresher course.
