Hari Reddi received his PhD from the University of Delhi in reproductive endocrinology under the mentorship of M.R.N. Prasad. Reddi did postdoctoral work with [http://www.uchospitals.edu/news/2004/20040602-williams-ashman.html Howard Guy Williams-Ashman] at the Johns Hopkins University School of Medicine.  Reddi was also a student of Charles Brenton Huggins, the winner of the 1966 Nobel Prize with Peyton Rous for the endocrine regulation of cancer.