The is considered one of the most successful and daring rescue missions in global mining history . On November 13, 1989 , a sudden deluge of water flooded the Mahabir Colliery in West Bengal, trapping 71 miners nearly 330 feet underground. While six miners tragically lost their lives, the remaining 65 survivors were saved through the innovative "Steel Capsule" technique led by mining engineer Jaswant Singh Gill . The Disaster: A Sudden Deluge
Date of incident: April 9, 2026