What type of physicist is Arup Kumar Raychaudhuri?

Context: Arup Kumar Raychaudhuri is an Indian condensed matter physicist, materials scientist and a Distinguished Emeritus Professor at the S. N. Bose National Centre for Basic Sciences. Known for his pioneering work on the interplay of disorder and interaction, Raychaudhuri is an elected fellow of all the three major Indian science academies viz. Indian Academy of Sciences, National Academy of Sciences, India and Indian National Science Academy as well as the Asia-Pacific Academy of Materials. He is a recipient of a number of awards such as Millennium Medal of the Indian Science Congress, ICS Gold Medal of the Materials Research Society of India and FICCI Award. 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 1994.

Answer: Arup Kumar Raychaudhuri is a condensed matter physicists.