Six-year-old Nuri and her younger brothers - John Lalpekhlua (four) and Jonathan (three) - were burned alive, while their elder sister Lalchhanhimi survived serious burn injuries yesterday, the police said.
The injured is currently undergoing treatment at a local hospital, police said.
According to the police, their parents were away when the incident occurred.
The mother reportedly left a burning candle in the childrens' room which is suspected to be the cause of the fire, police said adding further investigation is on in the matter.