Chasnala The Story of Betrayal of Independence | Sankalp ...
"The Chasnala Mine Disaster occurred on the evening of 27 December 1975, and killed 372 miners in,Dhanbad, India. "The Explosion "On 27 December 1975, an explosion rocked the Chasnala Colliery in Dhanbad, India. The explosion was most likely caused by sparks from equipment igniting a pocket of flammable methane gas.