Selvadurai graduated in 4 years from Worcester Polytechnic Institute with a Bachelor of Science in Computer Science and a Master of Science in Computer Science in Worcester, Master of Arts. During his time at Worcester, he spent 5 months in his junior year on a study abroad programme at King"s College London.
He was the first child and has a younger sister Chindhuri Selvadurai. He went on to work with Lucent, Sony, Nokia and Sun Microsystems before he started his mobile social-networking venture Foursquare, along with Dennis Crowley. He has been listed in the "World"s New Young Millionaires" released by America Online Small Business.
He has been on Fox Business Network, and Cable News Network"s special by Fareed Zakaria, "Getting American Back to #1," talking about how he became the person that he is today.
In 2009, Selvadurai co-founded Foursquare with Dennis Crowley. lieutenant is a location-based social networking website for mobile devices, such as smartphones.
Users "check in" at venues using a mobile website, text messaging or a device-specific application by selecting from a list of venues the application locates nearby. Location is based on Global Positioning System hardware in the mobile device or network location provided by the application, and the map is based on data from the OpenStreetMap project
Each check-in awards the user points and sometimes "badges".
The user who checks in the most often to a venue becomes the "mayor," and users regularly vie for "mayorships."
On March 4, 2012, Selvadurai announced on his blog that he will step down from his day-to-day operational role at the company later that month. He said he will continue to serve as a board member and adviser to the company. Selvadurai joins Expa as a partner focused on New York operations for the organization.