The gas leak, described as the world’s worst industrial accident, occurred when a storage tank at a Union Carbide India pesticide plant spewed deadly cyanide gas into the air in Bhopal, killing more than 3,500 slum dwellers immediately.
Meanwhile, the sit-in by around 50 Bhopal gas tragedy victims, who arrived in Delhi on foot, entered 46th day. More than 400 other Bhopalis joined them on Monday.