| General Summery of Coal Mines in West Bengal (2001 to 2006) | ||||||
| Description | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 |
| Coal Mines (Number)-Total | ||||||
| Coal Mines Worked Under Mechanical Power | ||||||
| Average Number of Persons Employed Per Day (Number) | ||||||
| A) Underground Miners and Loaders | ||||||
| B) Others | ||||||
| A) Open Working-Miners & Loaders | ||||||
| B) Other - Males | ||||||
| Females | ||||||
| Surface - Males | ||||||
| Females | ||||||
