Section 377(a) in Police Regulations, Bengal , 1943
(a)The general diary as prescribed under section 44, Police Act, 1861, and sections 154 and 155, Code of Criminal Procedure, shall be kept in B.P. Form No. 65 at all police-stations. The officer-in-charge is responsible that it is punctually and correctly written. He shall himself make all but the routine entries. The diary shall be written in duplicate with carbon paper. Each book shall contain 200 pages, duly numbered.