Indian businessman Gautam Adani, one of the world’s richest people, has been indicted in the U.S. on charges he duped investors in a massive solar energy project in India by concealing that it was being facilitated by an alleged bribery scheme. Adani was charged in an indictment unsealed Wednesday with securities fraud and conspiring to commit securities and wire fraud. He is accused of defrauding investors who poured several billion dollars into the project by failing to tell them about more than $250 million in bribes paid to Indian officials to secure lucrative solar energy supply contracts. Adani's company in India had no immediate comment.