The ground floor of the building housed a shop, which was closed while the first floor was vacant.
A family lived on the second floor of the building. Two of the children, who were killed in the incident were brothers, aged around 10 years, and lived on the second floor.
Two families were living on the third floor. One of the deceased woman, Munni, was living in one of the houses on the third floor. The second family living on that floor lost its children -- a boy and his sister aged below five.
The fourth floor was inhabited by a couple -- Narottam and Nisha. Nisha is critical, the police said.
Some people are still feared trapped under the debris and rescue teams are working at the spot, the police said.