Rescuers have been on their toes all night through as they attempted to get out the trapped people after a flyover in the city of Kolkata collapsed on them.
The bypass was yet to be fully constructed in the Girish Park and it suddenly collapsed on Thursday night.
The current figures indicate that 21 people have died while several others injured as a result of the Kolkata flyover collapse.
The 2 kilometer long flyover has been under construction since 2003 and has failed to meet its construction deadline on numerous occasions.
The reason for the accident occurring is yet to be determined but India has on a long time found itself in troubles regarding use of substandard materials and also failure to inspect.
IVRCL is the company responsible for the construction and said that it would work together with the investigators. One of the senior officials via a news conference said that the company’s safety record is good and that the incident was “an act of god.”
The flyover was in one of Kolkata’s most densely populated neighborhoods, with narrow lanes, and shops and houses built close together, making it difficult to get heavy equipment to the scene.
BBC’s Rahul in Kolkata reported that the scene was chaotic as on Thursday night as the police tried to prevent further tragedy by clearing the area in case there was a second collapse.
CCTV footage posted on social media appears to show the moment a 100-metre section of the structure collapses, hitting passers-by, auto rickshaws and nearby buildings.
Eyewitnesses have also reported hitting of nearby cars, Lorries and buses. It is said that there were people who lived in makeshift homes right under the flyover.
Concrete cutters, sniffer dogs, life sensor detectors and sniffer dogs are being used by the emergency tams.
A spokesman for the National Disaster Management Authority (NDRF), Anurag Gupta, told AFP that soldiers and NDRF personnel were at the scene alongside hundreds of police and local officials.