The barrier erected between Bagdihi and the abandoned Jayarampur mine was only 10-20 feet long as against the required 120 metres. The communication system of the mine was outdated and collapsed when the need arose. The DGMS didn't check for subsidence cracks and breaches.The Mine Tragedies1955 Amlabad 521958 Central Baura 231965 Thori 2681973 Nunudihpur 481975 Kesargarh 481975 Chasnala 3901976 Sudamadih 431995 Gaslitand 641998 Bermo 112001 Bagdihi 38