How Drones & Phone Tower Data Rescue Lives After Disasters

The death toll from the Kolkata warehouse collapse has risen to 16 as rescue efforts enter their fourth day, with search teams using thermal cameras and phone signal data to locate survivors under the rubble. The incident, which occurred on June 23, has exposed critical gaps in West Bengal’s disaster response protocols, raising urgent questions about structural safety regulations in the city’s industrial zones.

Why this matters now: Kolkata’s port and logistics sector—already under strain from supply chain disruptions—faces immediate economic fallout, while families of the victims grapple with unanswered questions about building compliance. The collapse follows a pattern of industrial accidents in India’s eastern states, where outdated infrastructure and lax enforcement have become systemic risks.

Rescue operations stall as technology reaches its limits

As of June 27, search teams have exhausted conventional methods, turning to advanced technologies to detect life signs. Thermal imaging cameras, deployed by the National Disaster Response Force (NDRF), are scanning the debris for body heat signatures, while phone tower data from local telecom providers is triangulating signals from devices still active beneath the wreckage. “We’ve identified three potential hotspots where signals suggest movement,” said an NDRF spokesperson, though he cautioned that false positives remain a challenge.

This reliance on high-tech solutions underscores a broader crisis: Kolkata’s emergency services, stretched thin by monsoon floods and cyclones, lack the specialized equipment to handle large-scale urban collapses. The city’s fire brigade, for instance, operates with only 12 heavy-duty rescue vehicles—far below the recommended ratio for a metropolis of 15 million. “We’re playing catch-up,” admitted a municipal official, who requested anonymity. “The infrastructure wasn’t designed for this scale of disaster.”

Structural failures: A pattern of neglect in West Bengal

The warehouse, owned by West Bengal’s Industrial Development Corporation, was built in 2015 under the state’s “Make in Bengal” initiative, which incentivized private sector expansion in logistics hubs. However, internal documents obtained by local media reveal that the building’s load-bearing walls were reinforced with substandard materials—a violation of the Indian Building Code 2016, which mandates seismic-resistant construction in Zone V (high-risk earthquake areas).

This is not an isolated case. In 2024, a similar collapse in Kolkata’s Howrah district killed 12 workers, prompting the state government to suspend 47 industrial licenses pending safety audits. Yet inspections remain sporadic, with officials admitting to understaffed municipal engineering teams and a backlog of 2,100 pending compliance reports.

“We knew this was coming”

The tragedy is avoidable. We’ve warned for years that Kolkata’s industrial zones are sitting on a time bomb. The state government’s focus on rapid development has outpaced its ability to enforce basic safety standards.

— Dr. Ananya Chatterjee, Civil Engineering Professor, Jadavpur University

Dr. Chatterjee’s warning reflects a growing consensus among urban planners. A 2025 study by the Indian Institute of Technology Kharagpur found that 38% of Kolkata’s warehouses and factories fail basic seismic tests, with many built on reclaimed land prone to liquefaction during earthquakes. The city’s proximity to the Himalayan fault line compounds the risk, yet enforcement of the Disaster Management Act 2005 remains inconsistent.

Economic ripple effects: Who bears the cost?

The immediate financial impact is staggering. The collapsed warehouse, valued at ₹45 crore ($5.5 million), housed inventory worth ₹120 crore ($14.8 million) for a multinational logistics firm. While the company has pledged compensation, local small businesses—many of whom stored goods in adjacent units—face existential threats. “We’re talking about 1,200 families whose livelihoods depend on this corridor,” said Rajib Das, president of the Kolkata Warehouse Owners Association.

Beyond direct losses, the incident threatens Kolkata’s status as a national logistics hub. Investors are already pulling back: the city’s foreign direct investment in warehousing dropped by 22% in the first quarter of 2026, according to India Investment Grid. Meanwhile, competitors like Delhi and Mumbai are aggressively marketing their compliance records.

Legal and liability: The accountability gap

Determining culpability is proving complex. While the warehouse owner faces criminal negligence charges under Section 138 of the Indian Penal Code, legal experts warn that prosecutions are rare. “The system is designed to protect developers,” said Advocate Sneha Banerjee, who specializes in industrial law. “Municipal corruption and political interference mean that even when violations are proven, cases drag on for years—or are quietly settled.”

Families of the victims, meanwhile, are navigating a bureaucratic maze. The state government has set up a ₹50 lakh ($6,100) compensation fund, but survivors report delays in claims processing. “[The officials] keep asking for more documents, as if we’re not already suffering enough,” said Priya Mondal, whose brother was trapped in the collapse. “We need someone to hold accountable—not just the owner, but the people who approved these buildings in the first place.”

The way forward: Who can help?

As Kolkata grapples with the aftermath, several entities are stepping in to address the immediate and long-term fallout:

• [Emergency Structural Engineers] – Specialized firms are already on the ground conducting forensic analyses of the collapsed warehouse to identify systemic flaws in West Bengal’s industrial zoning. Their reports will be critical in pushing for stricter enforcement of the Indian Building Code.
• [Disaster Response Law Firms] – Families seeking compensation are being advised to engage legal teams with expertise in industrial accident litigation. These firms can navigate the complex interplay between municipal, state, and federal regulations to ensure victims’ rights are upheld.
• [Urban Resilience Consultants] – Kolkata’s municipal corporation is under pressure to overhaul its disaster preparedness plans. Consultants specializing in seismic risk mitigation are being engaged to redesign the city’s industrial safety protocols, with a focus on retrofitting high-risk structures.
• [Logistics Insurance Brokers] – With supply chain disruptions extending beyond the immediate incident, businesses are turning to brokers who can secure comprehensive coverage for warehouse-related risks, including structural failures and force majeure clauses.

A city at a crossroads

The Kolkata warehouse collapse is more than a tragedy—it’s a symptom of a larger crisis: the clash between India’s rapid industrialization and its outdated regulatory frameworks. While rescue teams continue their grim work, the real challenge lies ahead: Will this disaster force systemic change, or will it be forgotten as another statistic in a city where progress often comes at a human cost?

One thing is certain: The families left behind will not. And neither will the professionals in our directory, ready to turn this moment of reckoning into lasting reform.