New Delhi, Sept. 30 -- Tata Consultancy Services Ltd's struggle to sell AI services and products to clients is back in the spotlight, even as the legacy offshoring business grapples with uncertain demand and barriers in the US, its largest market.

Siva Ganesan, who took over as AI.Cloud business head in July 2023 at India's largest software services provider, quit earlier this month, according to two people aware of the matter. His exit followed the appointment of company veteran Amit Kapur to lead its new AI unit.

Two bosses for its AI business in a little more than two years reflect TCS's uncertainty regarding the new technology, especially since the business itself was overhauled at least three times in the past three years. The Mumb...