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Korba Coalfield - Wikipedia

Gevra mine is an open cast mine complex at the town of Gevra that has been described as the largest open cast mine in India ... in the coal from open cast mines.

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Coal mining - Wikipedia

Most open cast mines in the United States extract ... Coal mining in India has a long history of commercial exploitation starting in 1774 with John Sumner and ...

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Mining in India - Wikipedia

D.R. Khullar holds that mining in India depends on over 3,100 mines, ... Both open cast mining and underground mining ... India ranks 3rd in production of coal ...

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