CEOs fear any change in status of the mines will mean disruption in production, loss of investment and increased production cost for user industries.
More than 10% (40 of 498 companies) have lost at least half their market value.
Lewis Hamilton scorched to his third pole position in a row for Mercedes in searing track temperatures at the Hungarian Grand Prix on Saturday.
With the results of the Jammu & Kashmir assembly elections out, hectic lobbying among the political parties has started, with a visible sign of the People's Democratic Party and the Congress warming-up to form the government.
'The win in Assam is likely to have a ripple effect in other north-eastern states like Manipur and Nagaland which have been reluctant to embrace the BJP in the past,' says Nitin A Gokhale, the distinguished commentator on strategic affairs, who lived and reported from Assam between 1983 and 2006.
Officers at Army headquarters say the chief has personally initiated this reshuffle, reports Ajai Shukla