Police on Thursday morning arrested 60-year-old Dipraj Rai of Mahakulung rural municipality-5 Chachalung on the charge of sharp weapon attack on his neighbour. Dipraj attacked 62-year-old Siddhi Shankar Rai with sharp weapon and stick during an altercation between the two. Siddhi Shankar sustained serious injury in the attack and is undergoing treatment at Setang Health post. Police are further investigating on the incident.