The Central Bureau of Investigation today filed a chargesheet against 490 people in Vyapam scam case in the Court of Special Judge, Bhopal. <br/><br/>Those charge-sheeted include, three Vyapam officials, 17 middlemen, 297 Solver and beneficiary candidates and 170 guardians of the beneficiary candidates. <br/><br/>The chargesheet against another 12 accused persons is also being filed in the Juvenile courts concerned. <br/><br/>The CBI also submitted its findings on the allegations of tampering of the Hard Disk Drive (HDD) that was seized by the Madhya Pradesh Police. Based on the CFSL reports and the other evidence gathered during the investigation, the agency concluded that there was no tampering in the HDD.<br/><br/>As per CFSL report, the computer with the HDD in question was last shut down on 15 July 2013 and no file on that HDD was accessed after that date. <br/><br/>All the 5 Excel files in the pen drive containing the reference of Chief Minister in it, were created or last modified on or after 18th July 2013. <br/><br/>The pen drive contains false documents created subsequent to the seizure of HDD in question and there is no grain of truth in the allegation that the HDD seized on 18th July 2013 from the office of then Principal System Analyst, Vyapam was tampered. <br/>