In a fit of rage, a man allegedly hacked to death his three sons and a daughter here besides critically injuring another girl child and his wife whom he had attacked with the same axe, police said on Tuesday.

The incident took place late Monday night in Bhagwanpur police station area of the district where the accused Awadhesh Chaudhary, said to be "mentally unstable", picked up a quarrel with his family members at their residence in Balaha Ali Gardanpur locality.