A day after a masked mob, armed with iron rods, sledgehammers and stones went around Delhi's Jawaharlal Nehru University (JNU) attacking students and teachers, leaving at least 34 injured after three terrifying hours, Delhi Police has identified some of the masked assailants and a complaint has been filed. The university is tense after last night's violence even as students in various cities showed solidarity with the JNU students and teachers through nightlong protests and vigils. Union Minister Amit Shah spoke to the Delhi police chief yesterday and has sought a report but the police are yet to make a single arrest. Mr Shah also spoke to Anil Baijal, the Lieutenant Governor on Delhi this morning and asked him to get in touch with the university representatives. Students and faculty members of JNU allege that police personnel and private security guards on the campus remained "mute spectators" as the masked attackers went on the rampage. They have also been accused of letting the attackers slip out.