He then went on to earn a Ph.D. degree in 1971 from the Banaras Hindu University for his work on "Evolution of karyotypes in snakes" in the area of Cytogenetics under the guidance of Professor Dr. S.P. Ray Chaudhuri.
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He was awarded the Dr. S. P. Basu Memorial Medal of Zoological Society, Calcutta in 1973 for his outstanding contribution to the field of Cytogenetics.
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