In 1984, Sunil joined India Tourism Development Corporation as General Manager, in charge of the duty free shops at Delhi, Bombay, Calcutta, Madras and Trivandrum airports.
In 1990 he was appointed by Swiss duty free group Weitnauer (now Dufry), to run its joint venture in Singapore, Scotts Weitnauer. As General Manager, Sunil was also responsible for Travellers Duty Free and Sincere Watch Duty Free.
In 1995, he was made Managing Director of Weitnauer Singapore, overseeing the expansion of the company in Asia, and was appointed Chief Operating Officer for Asia Pacific and The Middle East before leaving in 2002.
In addition to his role as Group CEO at King Power (Hong Kong), Sunil is also on the board of directors for King Power Singapore, Yam Seng Pte Ltd Singapore, King Power Traveller (Hong Kong), King Power Australia, Bordeaux wine producer Chateau Bernadotte, and Hookedge (UK).