The youth had jumped in front of a train in Kondavil and committed suicide.
Reporters in Jaffna said that the youth had left a suicide note explaining the motives behind the suicide.
The victim was identified as 18 year old Rajeshwaran Senthuran, a resident of Kopai and a student of Kokavil Hindu College.
Meanwhile students of the Jaffna university staged a demonstration drawing attention to the death of the student.
The Jaffna university students held black flags during the peaceful demonstration. (Colombo Gazette)