Adani has admitted to clearing six hectares of bushland and failing to declare this in its regular reporting to the Queensland Government.
The land was cleared on the Carmichael mine site to drill pads near boreholes and build tracks, and is approximately the size of 10 Brisbane residential lots.
Conservationists are accusing Adani of breaching the Oaths Act as lodging their reports requires signing a statutory declaration stating the documents are correct.
This brings the total land cleared on the Carmichael mine site to 127 hectares.