page_title: Biswa Ranjan Nag
section_title: Biography
hierarchical_section_title: Biswa Ranjan Nag / Biography
caption_attribution_description: English: The Calcutta University
context_page_description: Biswa Ranjan Nag was an Indian physicist and the Sisir Kumar Mitra chair professor at Rajabazar Science College, University of Calcutta. Known for his research in semiconductor physics, Nag was an elected fellow of Indian National Science Academy and Indian Academy of Sciences. The Council of Scientific and Industrial Research, the apex agency of the Government of India for scientific research, awarded him the Shanti Swarup Bhatnagar Prize for Science and Technology, one of the highest Indian science awards for his contributions to Physical Sciences in 1974.
context_section_description: Born on 1 October 1932 to Sailabala and Satyaranjan Nag at Comilla, a city along the Dhaka-Chittagong Highway in the undivided Bengal of the British India (presently in Bangladesh), B. R. Nag did his graduate studies at Presidency College, Calcutta during 1949–51 and earned a master's degree in technology (M.Tech.) from the Institute of Radiophysics and Electronics (IRE) at the Rajabazar Science College campus of the University of Calcutta in 1954. He started his career in 1956 as a faculty member at IRE and simultaneously pursued doctoral studies, mentored by Arun K. Choudhury. In between, he spent one year at University of Wisconsin obtaining an MS in 1959.  Mr. Nag returned to Calcutta to resume his doctoral work, and earned his PhD in 1961. Continuing his teaching career, he became a full professor in 1968. Further research which earned him a Doctor of Science degree from Calcutta University in 1972. He served out his regular academic career at the university and continued his association past his superannuation in 1997 as its Sisir Kumar Mitra professor. In between, he also served as a Commonwealth Visiting Professor at Bangor, Gwynedd.
  Nag was married to Mridula Roy Choudhury and the couple had two children, Biswadeep and Mriduchanda. He died on 6 April 2004 in Kolkata, at the age of 71.
caption: Nag completed his master's degree and served as faculty in University of Calcutta's Institute of Radiophysics and Electronics (IRE).
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