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Background History |
| 1774 | Warren Hastings initiates commercial coal mining at Raniganj (West Bengal) |
| 1815-1820 | First Shaft Mine opened at Ranigunj |
| 1835 | Carr, Tagore & Company takes over the Ranigunj Coal Mines |
| 1843 | Bengal Coal Company takes over Ranigunj Coal Mines and others; is first Joint Stock Coal Company in India. |
| Upto 1900 | Minimal development; River transportation used to transport coal to Calcutta;railway lines at Calcutta leads to expansion of Coal Production |
| Early 1900s | Capacity at 6 million tonnes per annum |
| 1955-56 | Focus on Coal Industry; capacity up to 38.4 Million tonnes. |
| 1956 | National Coal Development Corporation (NCDC) formed to explore and expand coal mining in Public Sector |
| 1972 | Coking Coal Industry Nationalised, Bharat Coking Coal Limited formed to manage operations of all Coking Coal mines in Jharia Coalfield. |
| 1973 | Non-coking coal nationalised; Coal Mine Authority Limited set up to manage these mines; NCDC operations bought under the ambit of CMAL. |
| 1975 | Coal India Limited formed as holding Company with 5 subsidiaries viz. Bharat Coking Coal Limited (BCCL), Central Coalfields Limited (CCL), Western Coalfields Limited (WCL), Eastern Coalfields Limited (ECL) and Central Mine Planning and Design Institute Limited (CMPDIL). |
| 1985 | Northern Coalfields Limited (NCL) and South Eastern Coalfields Limited (SECL) carved out of CCL and WCL |
| 1992 | Mahanadi Coalfields Limited (MCL) formed out of SECL to manage the Talcher and IB Valley Coalfields in Orissa. |
| 2000 | De-regulation of Coal pricing and distribution of coal. |
| 2007 | Coal India & four of its nos Subsidiaries,viz,NCL,SECL,MCL,WCL was accorded coveted "Mini Ratna" Status |
