South Eastern Coalfields Limited (SECL), a wholly owned subsidiary of Coal India Limited (CIL), has retained the position as country’s largest coal producing company with total coal output of 144.71 million tonnes (MT) in 2017-18.
The company with headquarters in Chhattisgarh’s Bilaspur district has been the flagship entity of the CIL since its inception in 1985. In 2015-16, the Mahanadi Coalfields Limited (MCL) had surpassed the SECL. In 2016-17, SECL again outshined the MCL and retained the position in 2017-18.
The MCL produced 143.06 MT of coal in 2017-18. The CIL’s total coal output during the period stood at 567.37

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