<div>The government will invite bids this week from merchant bankers and advisers for selling a 10 percent stake in state-run Coal India through a share auction, two sources involved with the matter said.<br /><br />The government's department of disinvestment (DoD) expects to launch the share sale by August or September, the sources, who declined to be identified, said.<br /><br />At the current price, the sale would be worth as much as $3.6 billion, although the shares are likely to be offered at some discount to the market price.<br /><br />The Indian government owns 90 percent of Coal India, the world's largest coal miner by output.<br /><br />(Reuters)<br /> </div>