Melbourne: Indian energy giant Adani on Thursday cleared the last regulatory hurdle to commence the work on its controversial carmichael coal mine project in Australia with the Queensland state authorities approving its groundwater management plan.

The final and last approval for the Adani Group's long-delayed billion dollar mega coal mine project came weeks after a surprise election win of Australia's pro-coal ruling coalition led by Prime Minister Scott Morrison. On May 31, Adani won the first approval from the Queensland state government to protect the endangered black-throated finch bird population as part of its crucial environmental plan at the site of its mine project.