Convener of the Inter University Students' Federation (IUSF) - Lahiru Weerasekera has been remanded until July 15.
The police had arrested Weerasekara and produced him before court.
The Fort Magistrate Court on June 16 ordered the Fort Police to arrest any university students who had defied the court order against their protest on June 15.
This order was given by Fort Magistrate Lanka Jayaratne when the case against three students arrested on June 15 was taken up.
The IUSF had protested against the arrest of seven students on allegations of ragging.