South Eastern Coalfields Wikipedia
. South Eastern Coalfields Limited ( SECL) is the largest coal producing company of India. It is a "Miniratna" Company, and one of eight fully owned subsidiaries of Coal India Limited. [1] [2] The company has its headquarter at Bilaspur, Chhattisgarh, India and 92 mines spread over Chhattisgarh Madhya Pradesh; 70 underground ...