Open-cast mining was more popular in India but rare minerals can only be found in underground mines, a top official has said.
"In India, open-cast mining is more popular...," Mines Secretary Arun Kumar was quoted as saying in a statement.
Speaking at the Hindustan Zinc Mining Academy convocation ceremony 2018, the secretary also stressed on honing skills of those required to operate critical equipment of underground mines.
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Hindustan Zinc Mining Academy, set up by Hindustan Zinc, saw at the first convocation 150 students passing out; of which, there were 103 jumbo drill operators and 47 winding engine operators.
The ceremony held in Udaipur was attended by Kumar, K P Krishnan, Secretary, Ministry of Skill Development and Hindustan Zinc CEO Sunil Duggal, among others.
Duggal stressed upon enhancing further skills of these pass-outs to match the international standards.
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