"We registered a case against the officials of SBUT and others yesterday," said senior inspector Shirish Gaikwad of J J Marg police station.
"As the personal responsibility is yet to be fixed, we did not mention any names in the case," he said.
The case was registered under IPC sections 304 (2) (culpable homicide not amounting to murder) and 338 (causing grievous hurt by act endangering life or personal safety of others).
The dilapidated building, which was more than hundred years old, had been declared dangerous to live in.
SBUT is supposed to redevelop several buildings in the area under 'cluster redevelopment' scheme. It is alleged that the trust failed to get the building vacated in time despite getting permission to pull it down in March 2011.