In a horrifying case, a contract teacher allegedly beat up a Class 4 student to death using an iron rod and badly injured his mother who is also a teacher in the school in a village in Karnataka's Gadag district on Monday, police said.

According to police, the incident occurred in Hadli village of Nargund taluk where Mutthappa Hadagali allegedly assaulted 10-year-old Bharath with an iron rod.