The hut caught fire from a lantern last night in Badhya Bujurg village when the three children -- Ankita (9), Aman (5) and Nisha (3) -- were sleeping, police said.
There was no other person in their hut when the fire broke out.
All the three children were seriously injured in the fire and were rushed to a hospital, where Anita and Nisha died.
Condition of Aman was stated to be critical.