A Mahatma Gandhi Kashi Vidyapeeth student was arrested for his alleged involvement in the October 31 shooting incident in an upmarket Varanasi shopping Mall in which two persons were killed and two others injured, the police said Monday.

Prime accused Alok Upadhyay was arrested from a bogey of the Farakka Express train at Cant railway station, the police said. Hiding in Ara district of Bihar after the incident, Alok was on his way to Lucknow, the police added. Soon after the shooting incident, the police had launched a manhunt to nab the miscreants and had been able to trace Alok's location by keeping his mobile phone on surveillance, they said.