In fresh incidents of violence in restive Manipur, a man was gunned down by the armed assailants of a different community while two others were injured in separate incidents in Bishnupur district on Wednesday, police said. In view of the violence, district authorities have cancelled the curfew relaxation in Bishnupur, Imphal East and Imphal West districts, where curfew was relaxed from 5 a.m. to 4 p.m.