Rescue workers, including those from the National Disaster National Disaster Response Force (NDRF), searched for more than a dozen people, who are still feared trapped in a 117-year-old, five-storey building that collapsed in Mumbai this morning, two days after torrential rain lashed the city. 21 people have died and 34, including four firemen, are injured and have been rushed to hospital. 28 people have been rescued so far.