Section 243(c) in Police Regulations, Bengal , 1943
(c)The information of the commission of a cognizable crime that shall first reach the police, whether oral or written, shall be treated as the first information. It may be given by a person acquainted with the facts directly or on hearsay, but in either case it constitutes the first information required by law. upon which the enquiry under section 157, Code of Criminal Procedure, shall be taken up. When hearsay information of a crime is given, the station officer shall not wait to record, as the first information, the statement of the actual complainant or an eye-witness.