Fire department officials said the incident was reported around 8 pm at the house of a lawyer and seven fire tenders were rushed to the spot.
"Two persons have died and six were injured. Rescue operation is underway," a senior district administration official said.
One of the deceased has been identified as Poonam. Four of the injured have been identified as Naina (4), Girish (6), Krish (12) and Sonu Kashyap (60), police said.
"Several persons are feared injured in the fire incident which occurred in a house following a cylinder blast. Rescue operation is going on," a senior district administration official said.
Fire department official said that the incident was reported around 8.30 pm and several fire tenders were rushed to the spot.