Asa Griggs Candler Professor,  Emory University, Georgia, USA. 
Formerly professor at Tata Institute of Fundamental Research (TIFR), Mumbai

Fellow of the Indian Academy of Sciences
Fellow of Indian National Science Academy
Bhatnagar Award (1987)
Honorary doctorate from the University of Lausanne in 1999
Srinivasa Ramanujan Birth Centenary Award (2003)

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Photo courtesy Archives of the Mathematisches Forschungsinstitut Oberwolfach