The decision was taken after the recommendation by the inter-ministerial panel on coal block, the coal ministry said.
The companies on which the notices were issued are SKS Ispat and Power, Mahagenco, Adhunik Corp among others.
The companies from whom the explanations were sought for slowing developing the mines are SKS Ispat and power, Coal India, Sasan Power among others.
The IMG chaired by additional secretary coal has members from ministries power and steel.