1965 Dhanbad coal mine disaster - Wikipedia. Coordinates The 1965 Dhanbad coal mine disaster occurred on May 28, 1965, in a coal mine near Dhanbad, a town in India. On the fateful day, there was an explosion in Dhori colliery near Dhanbad, which led to fire in the mines. The fire killed 268 miners. Dhori colliery is located near Bermo.