Chasnala, 40 years later: Memories of a flooded mine ...
"Although Chasnala is still underground, most of the mining in SAILIISCO mines and even in BCCL (Bharat Coking Coal Limited) mines in Dhanbad is now open cast. Opencast mines have a better safety record." Reminders. In September 1995, a BCCL mine in Gaslitand, Dhanbad, was inundated when the river Katri breached its embankment.