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.

Shares of Adani Group companies lost about $28 billion in market value in morning trade on Thursday after U.S. prosecutors charged the billionaire chairman of the Indian conglomerate in an alleged bribery and fraud scheme.

Shares in Adani Enterprises, the group's flagship company, fell by over 20%, helping erase an estimated $15 billion from Gautam Adani's net worth.