5.2. He would further submit that the Left Thumb Impression found on the admission card dated 16.02.2014 and 17.08.2014 respectively were not identical and thereby, inferring that two different persons had impersonated as A1-Devendra Kumar and had written exams conducted on 16.02.2014 and 17.08.2014 on behalf of A1-Devendra Kumar. He would also submit that since the impersonators were unknown, a Final Report was filed as against A1-Devendra Kumar and unknown persons for having cheated the Department and obtained an employment. At the time of filing Final Report, a request was made that a Supplementary Charge Sheet would be filed under Section 173(8) of Cr.P.C., after unearthing other facts. Thereupon, the Additional Chief Metropolitan Magistrate, Egmore, Chennai, had taken congnizance of the case in C.C.No.3383 of 2016. Learned Special Public Prosecutor would submit that at the request of CBI, permission was accorded by the trial Court for further investigation under Section 173(8) of Cr.P.C., vide order of the Court dated 20.10.2021 in Crl.M.P.No.14428 of 2021 to find out the actual accused, who had impersonated and attended MTS Paper-I dated 16.02.2014 and MTS PaperII examination dated 17.08.2014 on behalf of the candidate Devendrakumar.