Massive deployment of security personnel remained in place on Monday at Jawaharlal Nehru University, with authorities only allowing students with valid ID cards inside the campus which had witnessed violence. According to sources, security was deployed outside the hostels, administration block and other important locations. Entry of outsiders including media was restricted. Violence had broken out at JNU on Sunday night as masked men armed with sticks and rods attacked students and teachers and damaged property on the campus. Watch full report.