Long delays and steady legal challenges have impeded Adani Enterprise's dream to build one of the world's biggest coal mines in Australia. Battling multiple legal offensives from green groups opposing the $10 billion Carmichael mine, rail and port project, a media report quoted company founder and chairman Gautam Adani, "You can't continue just holding. I have been really disappointed that things have got too delayed." While the Queensland state government gave Adani permission to mine coal reserves estimated at 11 billion tonnes and to build roads, workshops, power lines, and pipelines, environmentalists have made things difficult for the Indian conglomerate. Adani, which aims to start building the Carmichael mine in 2017, expects to be able to go ahead eventually as most of the coal is slated to go to its own power stations in India.