Complex sentence: In the past, Sumant has served as the Chairman at the National Retail Committee of CII and was a Member of Board of Advisors at the Conference Board, India, and on the SIPA Advisory Board at Columbia University.
Split into simpler sentences: In the past, Sumant served as the Chairman at the National Retail Committee of CII. He was also a Member of Board of Advisors at the Conference Board, India and on the SIPA Advisory Board at Columbia University.