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India's state-owned miner NMDC Ltd
NMDC plans to shortly send a team to Bhopal for talks with state authorities, one of the sources said.
"We initially wanted the central government to directly give us the mine through nomination but it was turned down," another of the sources said, adding that the government wanted the mine to be sold via auction due to the large amount of interest.
The Bunder deposit, which is estimated to hold around 32 million carats of diamonds, was abandoned by global miner Rio Tinto
The state government is likely to auction the deposits later this month following planned changes to the National Mineral Policy that could enable wider participation, a senior state government official said on condition of anonymity.
The new policy is expected to lower the eligibility criteria for bidders on big projects, allowing bidders with a net worth of 2 percent of the value of a project's resources, down from 4 percent currently, according to a draft.
"By Nov. 30, we will be issuing the notice inviting tender," Manohar Lal Dubey, Madhya Pradesh's top mineral resources official, told Reuters by phone.
NMDC did not respond to a Reuters email seeking comments.
RACE FOR DIAMONDS
Rio spent about $90 million over 14 years on Bunder, located in a forested area important to tiger and wildlife habitats, but the project was hampered by delays in obtaining environmental permissions.
Small teams from both Vedanta Resources
NMDC already mines diamonds in the neighbouring Majhgawan mine at Panna, Madhya Pradesh, where the company has extracted about 1 million carats of diamonds, according to information on the company's website.
Separately to the current bidding process, NMDC plans to explore the remaining 590 hectares of the mine area after seeking approval from the National Mineral Exploration Trust, the sources said.
The environment ministry earlier this year gave an unofficial assurance of speedy forest clearance, the state government official said.
"We have their in-principle approval that there will not be delays."
The area is, according to the environment ministry, a corridor between the Panna Tiger Reserve and the Navardehi Wildlife Sanctuary and has seen protests from environmentalists.
"The site is a protected forest not a reserve, so the density of trees isn't the way the activists are claiming it is," the official said.