Prof. Dani had a long and fruitful career at the Tata Institute of Fundamental Research (TIFR), Mumbai, from 1969 retiring in 2012 as Distinguished Professor. Subsequently he was affiliated with the Indian Institute of Technology (IIT) Bombay for five years, and since July 2017 he is affiliated with the UM-DAE Centre for Excellence in Basic Sciences, Mumbai, and is currently the Chair of the School of Mathematical Sciences of the Centre. He has made extensive research contributions in many areas of mathematics, contributing well over 100 papers in international journals. For the last two decades he has also been keenly interested in the history of mathematics in India and has written many papers on the topic. He has received numerous awards including the Mathematical Sciences Prize of TWAS (the World Academy of Sciences), the Shanti Swarup Bhatnagar Prize, and the Srinivasa Ramanujan Medal of the Indian National Science Academy. He is a Fellow of TWAS and all the three national academies of sciencein India: INSA (Delhi), IASc (Bengaluru) and NASc (Allahabad). He is an Honorary Fellow of the Tata Institute of Fundamental Research, and an Honorary Member of the Marathi Vidnyan Parishad. He was President ofthe Indian Society forHistory of Mathematics(ISHM)during 2008-19, and was a member of the Executive Committee of the International Commission for History of Mathematics (ICHM), during 2015-18. He has been on the Editorial Boards of several international journals and was the Editor of the Proceedings of the Indian Academy of Sciences (Mathematical Sciences) during 1987-2000. He is currently the Editor of Ganita Bharati, the Bulletin of the Indian Society for History of Mathematics, since 2010.