He retired in December 2016 and sat on Husky's board of directors until December 2020 when it merged with Cenovus Energy Inc.[1] Ghosh has held senior leadership roles in Canada, India and Hong Kong at a number of multinational corporations, including Carling O'Keefe (now part of Molson Coors), Pepsi Foods, and Hutchison Whampoa.

He joined Rothmans International in 1980, eventually becoming Senior Vice President with the subsidiary Carling O'Keefe, which was one of Canada's largest breweries.

He moved to Hong Kong in 1991 in order to set up a consumer goods joint venture between Pepsi and Hutchison Whampoa.

During his tenure, the company grew from a one-city operation to become the country's second-largest mobile phone provider, with more than 63 million subscribers.

At the time, the sale was the biggest corporate takeover in India's history[3] and, according to a Thomson Reuters[4] analysis, the largest all-cash transaction in Asia up to 2007, with Vodafone agreeing to pay $11.1 billion in cash for Hutchison Whampoa's stake.