The five-storey building near a slum district in Mahad, which housed roughly 200 residents, caved in on Monday (August 24) evening.
One resident was dead and at least 30 were still trapped in the building which comprises of 47 flats, according to local authorities.
Local residents and police combed through tin sheets, metal rods and other wreckage in a desperate search for survivors as ambulances rushed injured to nearby hospitals amid heavy monsoon rains and fears of Covid-19 infections.
The cause of the accident was not clear. But building collapses are common in India, usually due to shoddy construction, substandard materials and disregard of regulations.