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coal mining methods in india ppt

Apr 03, 2017· The first published, reference to themining of coal in India dates back to the year 1774in the Raniganj Coal Field. Coal mining methods can be broadly divided into two types viz.Surface Mining Methodsand Underground Mining Method. The Indiancoal industryis the world’s third largest in terms of production and fourth largest in terms of reserves. Top coal producing states of India are Orissa, …

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