The development came at a meeting of the bidders convened by the government recently to discuss proposed auction of 23 coal blocks in the first tranche.
"During the meeting some of the companies raised their concerns about the double price bid. In the first or qualification stage the bidders will have to give an indicative price," an official said adding that the top five bidders will go for the next stage of e-auction.
An indicative price is the first price quoted by the company based on their own assessment, the official added.
Till now 100 companies have registered themselves on MSTC website for participating in the auction of coal blocks.
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During the pre-bid meeting attended by almost 100 companies, questions were also raised on different issues including the end-use plants linked to the coal mines.
The meeting was chaired by Vivek Bhardwaj, the designated authority for the auction. Bhardwaj is a Joint Secretary in the Coal Ministry.
The government has earlier dropped one coal block from the list of 24 mines due to "technical reasons".
After dropping Namchik Namphuk mine in Arunachal Pradesh from the list, 23 mines will be available in the first auction now.
E-auction of coal mines for qualified bidders will be held from February 14-22.