Scores of people were thought to be trapped after the collapse in the suburb of Ghatkopar, Mumbai police said on social media platform X.
At least 47 people had been rescued and were receiving hospital treatment, said Devendra Fadnavis, deputy chief minister of Maharashtra state. He said an investigation had been ordered into the accident. Rescue operations continued.
India has heavy rain and severe floods during monsoon season between June and September, which brings most of South Asia’s annual rainfall. The rains are crucial for rain-fed crops planted during the season but often cause extensive damage.
India’s weather department said lightning, rain and winds were likely to occur in parts of Mumbai in the coming hours, local media reported.
MNA