A teacher was shot dead by a head constable deployed for security of answer sheets of Uttar Pradesh board examination over petty dispute in Civil Lines area of Muzaffarnagar district, police sources said on Monday.

The sources here told UNI that teachers Dharmendra Kumar, Santosh Kumar along with Sub Inspector (SI) Nagendra Chauhan, head constable Chandra Prakash, two junior staff Jitendra Maurya and Krishna Pratap left from Varanasi with answer sheets.

 "After dropping answer sheets in Prayagraj, Shahjahanpur, Pilibhit, Moradanad and Bijnor they finally reached Muzaffarnagar on Sunday night," they said.

Police sources said that as the gate of SD Inter College was closed, the staff started taking rest in the vehicle.

"During this head constable Chandra Prakash, who was in an inebriated condition started troubling the other staff to which Dharmendra Kumar objected," they said.

The sources said that irked with this Chandra Prakash opened fire on Dharmendra with his official carbine.

"Dharmendra, who sustained serious injuries, was rushed to the district hospital by the police where doctors declared him dead," they said.

Police sources said that the staff which accompanied Dharmendra have been taken into custody and the weapons have been impounded.

"Senior officers inspected the spot and inquired about the incident," they said.

Meanwhile, agitated by the incident a large number of teachers assembled at Chhoturam Inter College and held a demonstration demanding action against the accused and job to a family member of the deceased.