The police said that the house belonged to Laibati and the only one staying in the house when the fire broke out - Laibati's mother Thuamnemi could not escape and was burned to death.
The cause of the fire was being investigated.
In another incident, the house of Chhunkunga of Ramthar locality in Aizawl was completely gutted last night and all the properties lost in the fire.
No one was killed or injured in the inferno.