The Government Law College in Ernakulam witnessed some chaotic scenes when activists of the Students Federation of India clashed with members of the Kerala Students Union (KSU) here on Monday. The incident took place in the afternoon when SFI cadres took out a march on the college campus and assaulted some of the KSU members without any provocation, the police said. The police have registered a case. The KSU alleged that two of its activists had sustained injuries in the attack and also called for a strike in colleges across the district on Tuesday to condemn the attack.