The Bhopal Gas Tragedy remains one of the darkest industrial disasters the world has ever seen. Even four decades later, the events of that night still haunt India’s collective memory. Understanding what unfolded on 2–3 December 1984 helps explain why the tragedy became a turning point in industrial safety and corporate accountability.

The story begins at the Union Carbide India Limited (UCIL) pesticide plant in Bhopal, where the company stored a highly toxic chemical called methyl isocyanate, or MIC. The plant had already reported safety lapses and cost-cutting measures in the months leading up to the disaster, including reduced maintenance, understaffing, and several malfunctioning safety systems. All of these weaknesses created the perfect environment for a catastrophic failure.

Late on the night of 2 December, water found its way into a tank containing nearly 40 tonnes of MIC. This simple mix triggered a violent chemical reaction inside the tank, causing the temperature and pressure to shoot up at a speed the workers on duty could not control. Safety mechanisms that should have neutralised the leak had either been shut down or were not functioning. Within minutes, the tank ruptured and a massive cloud of toxic gas began to escape into the air.

As the dense, poisonous cloud drifted towards nearby residential areas, thousands of people woke up coughing, choking, and gasping for breath. Many had no idea what was happening. The gas caused intense burning in the eyes and throat, leading to panic as entire families tried to flee through the dark streets. Hospitals quickly became overwhelmed, and doctors struggled to treat people without even knowing which chemical they were fighting.

By the time the sun rose on 3 December, the scale of the tragedy was horrifying. Thousands had already died within hours, and many more would die in the days that followed. Estimates vary, but official figures place the immediate death toll at around 3,000, while long-term estimates cross 15,000. Survivors still suffer from chronic respiratory problems, eye damage, reproductive issues, and other long-term health complications.

The aftermath of the tragedy raised painful questions about safety, negligence, and accountability. Investigations revealed that multiple safety devices at the plant had been switched off to cut costs. Union Carbide’s management faced global scrutiny, and the disaster eventually pushed India to strengthen industrial regulations and adopt stricter environmental and workplace safety laws.

Even today, the abandoned plant stands as a stark reminder of the night Bhopal changed forever. Contaminated soil, polluted groundwater, and unresolved legal battles continue to affect the lives of people living around the site. For the families who lived through the tragedy, justice has been slow, and healing even slower.