Adani Group founder Gautam Adani responded for the first time on Saturday to allegations by U.S. authorities that he was part of a $265 million bribery scheme, saying that his ports-to-power conglomerate was committed to world class regulatory compliance.

Authorities said Adani and seven other defendants, including his nephew, agreed to pay about $265 million in bribes to Indian government officials to obtain solar energy supply contracts expected to yield billions in profit.