Section 839(b) in Police Regulations, Bengal , 1943
(b)When an officer assumes charge as Superintendent, Additional Superintendent, Assistant, or Deputy Superintendent, he shall sign a charge certificate in duplicate in Bengal Form No. 2403 and forward one copy to the Inspector-General and one to the Accountant-General. The relieving officer shall also report his assumption of office to the District Magistrate and the Deputy Inspector-General of the Range. (See regulation 1069.).