"The building 'Matru Chhaya' crashed at about 10.40 pm following heavy downpour. A massive relief and rescue operation has begun and so far three injured persons have been rescued and rushed to the hospital," Regional Disaster Management Committee (RDMC) chief Santosh Kadam said.
He, however, said that the exact number of persons trapped under the debris is yet to be ascertained.
Fire brigade teams from Thane, Kalyan, Bhiwandi, and Ambernath have been rushed to the site, he said.