Executive is facing probe for allegedly leaking confidential information to former Galleon Group co-founder Raj Rajaratnam.
Last week the reputation of Gupta, one of the most revered business and management icons for the Indian American community, came under a cloud after the Federal Security and Exchange Commission charged him with insider trading.
Gupta, who has also been associated with the UN in other capacities, succeeds John Chalsty who stepped down after a two-year term.