The Navi Mumbai Municipal Corporation (NMMC) had appointed a structural auditor to inspect the three wings of the building, including the collapsed slabs, last week.
The RDMC said that the accident took place near Saket Road in Thane at around 12.45 pm when the three-wheeler was heading to Thane railway station from Bhiwandi
The building has a tailoring shop on the ground floor and the shopkeeper closed the outlet and left the place a few minutes before the incident, a fire official said.