The Mirihana Crimes Division is investigating into the incident where a first-year student of the Sri Jayawardenepura University was hit on the head with a tyre thrown at him by a group of senior students.
The victim, 20-year-old Pasindu Hirushan, was admitted to the ICU at the National Hospital, Colombo following the ragging incident on March 5.
Hospital sources said the student is suffering from brain injuries and internal bleeding.
The police said statements would be recorded from the students and medical officials of the ambulance who rushed the student to the hospital.
They said they would also inform the Nugegoda Magistrate over the incident.