strangulated her two-year-old son to death before committing suicide at Amta police station area of Howrah district, the police said.
It appeared that the woman, in her early 20s, used a pillow to kill her son and then tried to set herself on fire.
However, due to some reason, later hanged herself at her house in Milky Chowk locality, the police said.
Her husband is absconding while her parents-in-law were arrested.
The woman's mother complained to the police that her husband maintains an illicit relation with another woman which could be the reason behind the suicide.