[2] He is chairman of Wellbore Integrity Solutions, a global oilfield services provider, owned by private equity firm Rhône Group.

Early in his career, Chellaraj worked at Strategic Analysis Incorporated, a consulting firm based in Wyomissing, Pennsylvania.

[3][2][4] After leaving the US Government, he worked as vice president of planning for Hostess Brands, an American-based bakery company.

[5] He then immigrated to the United States and studied at Clarkson University, receiving a master's degree in chemical engineering.

He attended the London Business School, International Management Exchange Program and studied French at the Sorbonne in Paris.