Srinivas was born in Chennai (then Madras) in 1940. S. R. Srinivasa Varadan graduated from the Presidency College, Madras in 1959 and then went to the Indian Statistical Institute in Kolkata. In 1953, his family moved to Kolkata. He then went back to Chennai in 1958 for college. In 1960 when he went to Kolkata for college. He worked in Chennai and Kolkata. After college, he was one of the "famous four" in ISI during 1956–1963 (the others being R. Ranga Rao, KR Parthasarathy and Veeravalli S. Varadarajan). He received his doctorate from ISI in 1963 under CR Rao, who arranged for Andrey Kolmogorov in the thesis defence of the boon. Since 1963 he has worked at New York University's Court of the Institute of Mathematical Sciences, where he was the first postdoctoral fellow (1963–66), strongly recommended by Monroe de Donsker. Here he met Daniel Stroke, who became a close collaborator and co-writer.
S. R. Srinivasa is also known as Raghu who came to these shores from his native India in the fall of 1963. He arrived at the Idlewild airport by plane and left for Manhattan by bus. His destination was with a well-known institution called the Curtain Institute of Mathematical Sciences, where he was given a postdoctoral fellowship. The boon was entrusted to one of the many windowless offices in the courthouse building, which used to be a cap factory.
Vardan is currently a professor at the Courant Institute. He is known for his work with Daniel W. Stroke on dissemination processes, and on major deviations with Monroe de Donsker. He chaired the Mathematical Sciences Jury for the Infosys Prize since 2009 and was the Chief Guest in 2020. Mr R. Srinivas' award and honour include President Barack Obama's National Medal of Science (2010), "the highest honour given by the United States Government on scientists, engineers, and inventors". He also received the Margaret and Herman Sokol Award from the Faculty of Arts and Sciences for Research (1996), the Margaret and Herman Sokol Award from New York University (1995), and the Leroy P. Steele Award from the American Mathematical Society. He was awarded for his work with Daniel W. Stroke on diffusion procedures. He was awarded the Abel Prize for his work on major altercations with Monroe de Donsker in 2007. In 2008, the Government of India awarded him the Padma Bhushan. He also has two honorary degrees from the University Pierre et Marie Curie in Paris (2003) and the Indian Statistical Institute in Kolkata, India (2004).
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