Unable to bear the burden of mounting loan, a 40-year-old man allegedly strangulated his wife to death and killed self at Kalyani in Nadia district early today, police said.
Bapi Chakraborty was found hanging in a room, while the body of his wife Jhuma (32) was lying on bed in the same room which was bolted from inside.
The bodies have been sent for postmortem examination.
The couple used to fight frequently over repayment of the loans and they quarrelled last night also, police said.
Bapi, who used to do odd jobs, rang up his sister living in another town of the same district, at around 2 am and informed her that he had strangulated his wife and was now going to kill himself.
The couple's two teenaged sons, Biplab and Biswajit, was in another room.
The horrified woman called up Bapi's sons and told them about their father's phone call.
Biswajit said, "We rushed to the room and knocked on the door. We heard some sound inside the room. It appears father hanged himself after our knocks."