Kolkata building collapse: Balcony, roof cave in at Sovabazar's Raja Nabakrishna Street
Synopsis
A building the Kolkata Municipal Corporation had already flagged as dangerous collapsed anyway — and it took neighbours, not the civic body, to pull two people from the rubble. With the KMC board dissolved and no councillors in place, Friday's Sovabazar collapse exposes a governance gap that monsoon rains are making increasingly costly.
Key Takeaways
The balcony and roof of a building at 66, Raja Nabakrishna Street , Sovabazar , North Kolkata , collapsed on Friday, 4 September .
Two residents were rescued from the rubble by neighbours; two other tenants were not present at the time.
The Kolkata Municipal Corporation (KMC) had previously tagged the building as dangerous but took no further action, according to local residents.
Sniffer dogs and the state disaster management team were deployed to check for trapped pedestrians beneath the debris.
Persistent monsoon rains and waterlogging are reportedly weakening multiple old structures across Kolkata .
The cause of the collapse is set to be formally investigated by the state fire services department .
A section of the balcony and roof of an old, dilapidated building at 66, Raja Nabakrishna Street in the Sovabazar area of North Kolkata collapsed on Friday afternoon, triggering a swift rescue operation by local residents and emergency services. Two occupants trapped inside were pulled to safety by neighbours before official teams arrived.
What Happened
According to local residents, the balcony and a portion of the roof of the ageing structure suddenly gave way onto the street below on Friday, 4 September. Neighbours who witnessed the collapse immediately rushed to the spot and navigated through the rubble to rescue the two individuals who had been inside the house at the time. Two other tenants of the building were reportedly not present during the collapse and are safe.
Emergency Response
Residents alerted the West Bengal fire services department, local police, and the state disaster management department shortly after the incident. Police cordoned off the area to prevent further risk to pedestrians. The state disaster management team began clearing debris while sniffer dogs were deployed to check whether any pedestrians may have been trapped underneath the rubble. As of reports, there is no indication that anyone else remains trapped.
Building Was Already Tagged Dangerous
Local residents allege that the Kolkata Municipal Corporation (KMC) had previously marked the building as dangerous but took no further remedial action. 'The KMC had not paid attention to this matter earlier. Now, there is not even any Councillor, since the previous KMC board had been dismantled. Besides the two rescued from the debris, there were two other persons staying at the house as tenants. But at the time of the collapse, they were not in the house. We rescued the other two people who were caught in the rubbles,' a local resident said. Residents argue that tagging a structure as hazardous without enforcing evacuation or demolition amounts to an incomplete discharge of civic duty.
Rains Blamed for Weakening Old Structures
Persistent rainfall over the preceding days has caused widespread waterlogging across Kolkata, reportedly accelerating the structural deterioration of several ageing buildings in the city. The Raja Nabakrishna Street collapse is being seen as part of a broader pattern of monsoon-related structural failures in the city's older neighbourhoods. A state fire services department official confirmed that the cause of the collapse will be formally investigated.
What Comes Next
Authorities are expected to carry out a detailed structural audit of similarly marked buildings in the Sovabazar and surrounding areas. With the KMC board currently dissolved and no active councillors in place, accountability for enforcement of dangerous-building notices remains a pressing civic question heading into the remainder of the monsoon season.
Point of View
Which means the system worked up to the point of tagging and stopped entirely at enforcement. With the KMC board dissolved and councillor posts vacant, there is currently no local representative accountable for acting on such notices. Kolkata has dozens of similarly marked structures; without a clear enforcement chain, each monsoon season is effectively a waiting game for the next preventable collapse.
NationPress
5 Sept 2026
Frequently Asked Questions
Where did the Kolkata building collapse occur on 4 September?
The collapse occurred at 66, Raja Nabakrishna Street in the Sovabazar area of North Kolkata. A section of the building's balcony and roof fell onto the street on Friday afternoon.
Were there any casualties in the Sovabazar building collapse?
No fatalities have been reported. Two residents who were inside the building at the time were rescued safely by neighbours. Two other tenants were not present during the collapse.
Had authorities been warned about the building's condition?
Yes. Local residents state that the Kolkata Municipal Corporation (KMC) had already marked the building as dangerous prior to the collapse. However, no further remedial or evacuation action was reportedly taken.
Why are old buildings in Kolkata collapsing during the monsoon?
Persistent rainfall and waterlogging over recent days have been accelerating structural deterioration in Kolkata's ageing building stock. Officials say the cause of this specific collapse will be investigated, but the broader pattern points to monsoon stress on long-neglected structures.
What is the current status of the rescue operation?
As of the latest reports, there is no indication that anyone else is trapped. Sniffer dogs and the state disaster management team have been deployed to clear debris and confirm no pedestrians are buried beneath the rubble. Police have cordoned off the area.
