Mr. Sanjeeb Kumar is currently working as the Chairman of Life and Health Reinsurance business of Gallagher Re in India. He has also worked as CEO of Gen Re India Branch, Appointed Actuary at Aviva Life Insurance out of his total work experience of 35 years. ​

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He has been quite active in the actuarial profession in India, He has worked in several committees and has also been the President of the Institute of actuaries of India from Sep 2016 to Sep 2018.​