He serves on the Board of [[United Way Worldwide|United Way]], Chennai.
He is a member of Chennai Angels.
Prabhakar has written over 50 technical, business and general interest articles and opinion pieces, which have appeared in publications such as [[Harvard Business Review]], [[The Wall Street Journal]] (Mint, Indian edition) and [[Business Line]]. He also contributed to the book ''Black, White and Various Shades of Brown'' published by [[Penguin India]].
He has been invited to speak in various forums, including at [[Wharton School of the University of Pennsylvania|Wharton]] India Economic Forum, [[INSEAD]], [[Nanyang Technological University]], [[IIT Bombay]], [[IIM Calcutta]], [[ISB Hyderabad]] and [[Nokia]] Developer Forum.
==Personal Life==
In 1989, Prabhakar married Sangeeta Kshettry, co-founder of Sulekha.com. Prabhakar and Kshettry have two children, Divya and Priya.