A student was injured in a knife attack at a hostel of Chandigarh University’s Gharuan campus in Mohali around midnight on Tuesday, triggering a protest by students over alleged lax security measures on the campus.Police said a disagreement between two roommates over switching on the fan escalated into an argument and an attack on each other. The accused has been arrested in the case.Following the incident, students gathered in large numbers and raised slogans against the university authorities. Police personnel rushed to the spot to control the crowd.Police are investigating the matter. Officials said the injured student was stable and undergoing treatment at Sub-Divisional Hospital, Kharar.Police are also keeping an eye on anti-social elements and social media handles to check rumours and the spread of unverified information.