The Supreme Court had last month directed the Central agency to probe the sensational case.
The Thiruvananthapuram unit of the CBI yesterday submitted a re-registered FIR before the Chief Judicial Magistrate Court, Ernakulam, for further investigation as per the December 5 order of the apex court.
The CBI has not named anyone as accused in the FIR.
Jishnu Pranoy, a first year engineering student was found hanging in the hostel of Nehru College of Engineering and Research Centre, Pambady in Thrissur, in January last year.
His parents had then alleged that the boy had suffered brutal physical and mental harassment at the hands of the college management.
In its FIR, the police had said Jishnu was caught by an invigilator for copying during the examination conducted at the college on January 6, 2017 and due to mental tension he attempted suicide by hanging himself in the bathroom of the men's hostel.
His friends rescued Jishnu and took him to the Taluk hospital in Ottappalam but he died on the way, it had said.
Jishnu's parents and friends did not accept the police version and staged protests in the state with the support of student organisations and political parties seeking justice.
The Supreme Court on December 5 directed the Central Bureau of Investigation to probe into the mysterious death of the engineering student.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)