May 19, 2012. An agreement between three state-owned companies and Adani Enterprises over the terms of supply as well as the price of an inferior variety of coal slated to be used to fire a power plant being set up by the Ahmedabad-based group has been criticised by industry experts and may have prompted a recent policy change. In 2010, a consortium led by Adani Enterprises was awarded what is called the mine developer & operator (MDO) contract by UCM Coal, a three-way joint venture formed for developing coal blocks allotted to it in Odisha. UCM Coal's three shareholders are Uttar Pradesh Rajya Vidyut Utpadan Nigam, Chhattisgarh Mineral Development Corp and Maharashtra State Power Generation, or MahaGenco. The agreement had a clause stipulating that 'coal rejects', or coal of inferior grade - which usually refer to the residue left after washing - will be given to Adani for use in a power plant to be set up nearby. This will be free of cost, the agreement said, a provision that was later changed to a price of ' 21 per tonne.