The U.S. the Securities and Exchange Commission has issued a summons to Indian billionaire Gautam Adani, indicted on U.S. bribery allegations related to a bombshell federal indictment against him, a court filing showed.

The companies of billionaire Gautam Adani, one of Asia’s richest men, showed some signs of recovery on Friday even as controversy and uncertainty continued to roil the Indian tycoon’s businesses after he was indicted by U.

Now, the 62-year-old Indian billionaire and a close ally of Prime Minister Narendra Modi, whose sprawling $169bn empire spans ports and renewable energy, faces US fraud charges that could potentially jeopardise his ambitions at home and abroad.