The U.S. indictment of Gautam Adani has thrown a spotlight onto the rolling risks of India’s solar industry. Last week, prosecutors in New York charged the billionaire and several others of securities and wire fraud by agreeing to bribe government officials to secure solar power contracts for the Adani Group’s $19 billion renewable energy unit.

India’s opposition is protesting the government’s silence over allegations against billionaire Gautam Adani, who was recently indicted in the U.S. for alleged fraud and a scheme to pay bribes.