On immediate information, police rushed to the spot and took the injured to a local hospital for treatment.
"There were five people in the room, out of which one is injured and has been sent to hospital. Their purpose can only be identified after investigation," Arrah's Superintendent of Police (SP) Avkash Kumar told ANI.
"One aadhaar card and a pistol have been recovered from room," Kumar added.
A case has been registered and further investigations are on. (ANI)