MUMBAI, Feb. 3 -- Adani Group chairman Gautam Adani and his nephew Sagar Adani have hired prominent attorneys in the US-including one of Donald Trump's lawyers and a former Mafia prosecutor-to represent them in their defence against allegations of securities fraud levelled by the Securities and Exchange Commission (SEC).

The senior Adani has appointed law firm Sullivan & Cromwell LLP with Robert Giuffra leading the team representing him, as per a court filing dated 30 January. Giuffra is one of the most prominent white-collar crime defence attorneys in the US, having represented US President Donald Trump and German carmaker Volkswagen.

Giuffra is leading Trump's appeal against his conviction in the hush money case, in which a Manhattan ...