"Certainly one must appreciate that these (mines on offer) are producing mines. So there will be more aggressive bids for these mines as we move towards mines which are not very easy to operate or which are in more remote areas," Coal Power and New & Renewable minister Piyush Goyal told reporters here.
Three mines which are on offer today are Mandla North, Marki Mangli III and Trans Damodar.
The government is auctioning 19 mines in the first lot. The auction which began last week will last till February 22.