India\'s GVK Power & Infrastructure has won environmental approval from the state of Queensland for its A$6.4 billion ($6.30 billion) Alpha coal project, clearing a key hurdle towards winning a lease for the Australian mine. The approval from Queensland\'s coordinator-general sets a range of conditions for building a mine designed to produce 30 million metric tonnes (33.1 million tons) a year of thermal coal and a 495 km (310 mile) rail line from the mine to the port of Abbot Point. \"It\'s another step towards getting a mining lease and final approvals,\" GVK\'s spokesman Chris Bombolas said.