Several students were injured in a late-night clash between two student groups at the Jawaharlal Nehru University, with the Left groups and the ABVP accusing each other of unleashing the violence, and authorities vowing to crack down on any unruly behaviour on campus. Tensions flared on the campus of Jawaharlal Nehru University (JNU) after a protest against the vice-chancellor turned violent around 1.30 am on Monday. Following the incident, Delhi Police have registered an FIR after a complaint from the Chief Security Officer (CSO) of JNU regarding an incident involving JNUSU leaders and their associates on the intervening night, police officials said. According to police, an FIR has been registered under sections 115(2) (voluntarily causing hurt), 126(2) (wrongful restraint), 191(2) (rioting), 189(2) (unlawful assembly), 121(1) (voluntarily causing hurt to public servant to deter them from their duty), 132 (assaulting or using criminal force to deter public servant from discharging