The Tokisud North block that earlier belonged to GVK Power is expected to attract highest number of bids.
Various companies including Adani Power, Essar Power, GMR Energy, Jindal Power, Lanco Infratech, Sesa Sterlite, Tata Power and West Bengal Power Development Corp are likely to submit bids, a coal ministry said.
The block with 2.32 mn tonnes of annual coal production capacity has rail connectivity within 2.5 km.
Gare Palma IV/2 and IV/3 in Chhattisgarh, previously owned by Jindal Steel & Power, is also being eyed by close to a dozen companies.
The company shares were trading at Rs. 52, down 0.29% at BSE.
Meanwhile, the BSE Sensex is down 140 points at 29,043.