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University of Oxford.
Bhattacharya's father, Debesh Bhattacharya, was a lawmaker. He served as a Supreme Court jurist. Bhattacharya served as an executive director of the Centre for Policy Dialogue (CPD).In 2007 Bhattacharya was appointed Ambassador and Permanent Representative of Bangladesh to the WTO and UN Office in Geneva. A year later he resigned from the post citing "moral and ethical grounds".
Bhattacharya's mother, Chitra Bhattacharya, was a member of parliament of the Government of Bangladesh during 1996 to 2001.