New Delhi, Jul 28:  CBI today registered FIR against 18 persons in connection with alleged illegalities committed in the Forest Guard recruitment test conducted by Vyapam in 2012. CBI is tightlipped on the names of accused in the FIR registered under IPC sections related to criminal conspiracy, cheating and forgery and under section ? of the MP Recognised Examination Act. (Read:  Vyapam Scam: Opposition sponsored adjournment motions rejected, Speaker to allow MPs to speak on the issue) Also Read - PNB Scam Case: After Nirav Modi Loses Legal Fight, India Says Will Liaise With UK For His Early Extradition | Key Points

A preliminary enquiry has also been registered relating to the unnatural death of Brijesh Rajput, age (25 years) resident of Rajput Veterinary College, Jabalpur (Madhya Pradesh) who had died on October 22, 2010, CBI sources said. Rajput was a suspect in one of the Vyapam cases probed by Madhya Pradesh Police. Also Read - CBI Summons TMC Leader Abhishek Banerjee's Wife in Coal Smuggling Case Weeks Ahead of Bengal Polls

A 40-member CBI contingent headed by Joint Director R P Agarwal, a 1986 batch Assam-Meghalya cadre IPS officer, is probing the Vyapam cases. A Supreme Court bench headed by Chief Justice H L Dattu had on July 9 transferred the probe of all Vyapam cases, including the related deaths, to CBI. Also Read - CBI Arrests ED Employee For Posing As Enforcement Officer, Seeking Bribe