Upset at not having a baby boy, a man strangled his two-year-old daughter to death on Monday and then consumed poison at Bishalgarh, 30 km south of Agartala.
The police have arrested the man who is battling for life at Gobinda Ballav Pant Medical College and Hospital.
"Tapan Bhuyia, 47, a driver of a private vehicle, killed his daughter Supriya and then threw her body into a well at Bishalgarh, 30 km south of Agartala," a police spokesperson said.
Tapan after killing his daughter on Sunday night consumed poison to kill himself, a police official said.
Neighbours took him to hospital in a critical condition.
“Tapan always tortured his wife for giving birth to two girl children instead of son. Before executing the crime, he sent his wife and elder daughter to a neighbour's house to see television,” the police spokesman said.