BHOPAL: A man allegedly killed his wife at their home in Gwalior on Thursday morning following a domestic dispute. Police said Anand strangled Madhu Srivastava and then repeatedly struck her on the head with a pestle used for crushing spices at their home in Tyagi Nagar, near Defence School, under Murar police station limits.Madhu, who was observing the Karwa Chauth fast for her husband’s long life, died on the spot. The couple are in their early 40s.Anand called the police himself and reportedly told them he would open the door only after they arrived. Local resident Akash Rana, who lives near the couple’s house, said police called him and he accompanied them while they searched for the house.Anand remained in phone contact with the police throughout. When Rana entered the house with the police, Madhu was already dead. Police took Anand into custody and are questioning him.The motive remains unclear. Police and a forensic science laboratory (FSL) team collected evidence from the scene. The cause of death and the exact circumstances of the assault will be established through the post-mortem and forensic findings.Investigators are also examining whether there had been earlier signs of domestic discord.The couple married for love in 2010 and have a son and a daughter. Both children were reportedly at home at the time, along with Madhu’s sister-in-law, who was in another room.Family members said they did not hear any screams, and police are examining these accounts.Some neighbours described Anand as unemployed and said he frequently shouted at home. They also alleged that he had previously killed a dog.Neighbours described him as mentally unwell, but police have not confirmed any mental health condition.