1821. Crl. Appeal @ SLP (Crl.) No. 1074 of 2017 & Ors. Page 7 of 38submission of the report of the Imperial Serologist and drawing of the sketch map of the occurrence. In this context, reference was made to Section 173(1) of the 1898 Code and that the report/challan should set forth, viz. the names of the parties, nature of the information and names of persons who appear to be acquainted with the circumstances of the case. The cognisance, it was held, was proper. 11. In R.K. Dalmia (supra), again a reference was made to Section 173(1) of the 1898 Code and that the chargesheet must contain name of the parties, nature of the information and the names of persons who appear to be acquainted with the circumstances of the case. These observations were made in the context of the submission made on behalf of the accused that there was a change in the stand of the prosecution, which contention was rejected on several grounds, as mentioned in paragraphs 325 and 326 of the footnoted citation.