Umesh Prasad Chaurasiya, 32, of Birgunj Metropolis-13, Ranighat was seriously injured after being shot by the armed group before Ratobangala nearby District Police Office at 9.30 pm.
He was rushed to Narayani Sub Regional Hospital in Birgunj first and taken to Bir Hospital, Kathmandu for further treatment after the complications.
Injured Chaurasiya saw internal bleeding that remained uncontrolled so the case was referred to Bir Hospital, said doctors involved in his treatment.
Search for the shooters is underway, police added. The incident occurred nearby police office has made the locals fearful.