Feroz shot himself in the head at his apartment in Nawabganj area last night after having a heated argument with his wife Munira.
He suspected his wife of being in an illicit relationship and the couple had fought over the issue in the past, they said.
In the second incident, a woman committed suicide in the same area by consuming some poisonous substance following an argument with her husband.
The mother of two was found unconscious in her room by him and rushed to the hospital where she was declared brought dead, they added.
