Prof. Gupta was born (1939) Jaipur, India ,and was associated with many prestigious institutions in India and abroad, such as, Panjab University, Chandigarh(as a Ph D scholar), Alberta Univ. Edmonton, Canada,(Post doc) Univ. Pennsylvania, Philadelphia, USA,(Research Associate) All India Institute of Medical Sciences, New Delhi,(faculty) Mahidol University, Bangkok, Thailand,(visiting faculty), Centre for Cellular and Molecular Biology, Hyderabad (Director) Tottori University, Yonago,(visiting faculty ) Rhokyu University, Okinawa, ,(visiting faculty), National Institute of Physiological Sciences, Okazaki,(visiting scientist), Nara Medical University, Nara,(visiting faculty ), Chiba University, Chiba,(visiting faculty ) (all in Japan), Imperial Cancer Research Fund Laboratory, London, England, ,(visiting scientist) CNRS, Paris, France, ,(visiting scientist) Institute of Organic Chemistry and Biochemistry, Prague, Czechoslovakia,(visiting scientist) Max-Planck Institute of Experimental Endocrinology Germany, (Max Planck fellow) Academy of Sciences, Bulgaria, ,(visiting scientist) Manipal University, India (adjunct Prof), Gujarat University, India (adjunct Prof), in various capacities. He is fellow of many Indian and foreign Academies and learned Societies.He had his own fortnightly column in Indian Daily on Reproductive Health. He has worked on from insect to human reproduction.