Police said an altercation took place between Mojnu Mia and his wife Taslima at the parental house of latter located at Machiya village, Kalia union parishad over family feud.
During the quarrel, Sokhina Begum, 50, mother of Taslima tried to stop both of them. Then, Mojnu Mia got furious and allegedly hit on her head with a stick, leaving her severely injured.
She was taken to Tangail Sadar Upzila Health Complex where on duty doctor declared her dead.
Meanwhile, another woman committed suicide at Ghateshori village, Baheratoil union parishad over family feud.
Family members said Sajeda Khatun, wife of Saudi expatriate Chan Mia, was sent back to her parental house after an arbitration on Wednesday. Later, she committed suicide on Thursday night.
Abul Kashem, father of Sajeda, alleged that his daughter committed suicide after being tortured by her in-laws.
Sub-Inspector of Sokhipur police station Anisul Rahman said a murder and an unnatural death case were filed with the police station.
Officer-in-Charge of Sokhipur police station both the bodies were sent to the morgue of Tangail Medical College Hospital for autopsies. No one was arrested in this connections.