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Coal Mines In India Filetype Ppt

On November 5, 2017, 183 India has a long history of commercial coal mining. It began in the period of the East India Company. At that time, the British discovered coal in the laniganjie coalfield along the Damodar river. At that time, the demand was not high, but with the introduction of steam locomotives in 1853, the demand continued to increase

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