Hyderabad: A man bludgeoned his three-month pregnant wife to death on Friday here in Asifnagar. The accused then Vijay Kumar surrendered before police after killing his wife. According to the police, Vijay hit his three-month pregnant wife Shalini on her head after an argument. Shalini who suffered serious head injuries died on the spot. Later, the accused surrendered himself before police. An investigation is on.