| Company-wise Number of Contractual Manpower of Subsidiaries of Coal India Limited (CIL) in India (As on 01.12.2012, 01.01.2015, 01.12.2018 and 01.11.2019) | ||||
| Companies | As on December, 2012 | As on 01.01.2015 | As on 01.12.2018 | As on 01.11.2019 |
| Eastern Coalfields Limited (ECL) | ||||
| Bharat Cocking Coal Limited (BCCL) | ||||
| Central Coalfields Limited (CCL) | ||||
| Western Coalfields Limited (WCL) | ||||
| South Eastern Coalfields Limited (SECL) | ||||
| Mahanadi Coalfields Limited (MCL) | ||||
| Northern Coalfields Limited (NCL) | ||||
| Central Mine Planning and Design Institute Limited (CMPDIL) | ||||
| North Eastern Coalfields (NEC) | ||||
| Coal India Limited (CIL) | ||||
| Total | ||||
