The incident took place at 12.45 PM when the children's mother Sapna Seth, after noticing the fire, immediately jumped off the second floor in an attempt to save her, leaving her kids behind.
However, Sapna landed on the car of her neighbour and she sustained 60 percent burn injuries and is currently at the Intensive Care Unit (ICU) at a city hospital, police said.
Head Constable Rituraj and Constables Jogendra and Jitendra were patrolling in the area when they got the news about the fire. They broke the window of the house with their hands and pulled out the children who stood in a thick layer of smoke, said a police official.
Police said the fire took place due to a leakage in the gas cylinder in the house.