Yameen (75), Tufail, Haseen (30), his wife Sitara (28) and their daughter Humara, died on the spot while another person Fatma(60) scummed to injuries at the hospital, police said.
Raees and Chandrapal were also injured in the incident, they added.
The blast also damaged walls of neighbor's houses. It is suspected that they might have been trapped under the rubble, police said.
The reason behind the blast is still uncertain, though police suspect it to be a case of LPG cylinder blast or even presence of crackers in the house.