Section 743(f) in Police Regulations, Bengal , 1943
(f)Probation. - (i) For persons directly recruited to the rank of Assistant Sub-Inspector, the period of probation shall be one year, counting from the date of their arrival in a district on return from the Police Training College, and for Assistant Sub-Inspectors promoted from lower ranks, one year counting from the date of their promotion to the rank of probationary Assistant Sub-Inspector.
