7. Bhavish Aggarwal & Ankit Bhati | Co-Founders, Ola Cabs

Bhavish & Ankit founded Ola Cabs to reduce the hours spent on finding a car rental and a good cab deal. Olacabs.com is a portal for all types of cabs and car rentals. You can view customer ratings of that car operator and then book it right there on the website. Bhavish graduated with a BTech in Computer Science and Engineering from IIT Bombay and Ankit did BTech in Mechanical Engg and MTech in CAD and Automation from the same institute.

6. Vivek Ravisankar and Harishankaran K | Co-Founders, InterviewStreet

Interviewstreet began as a college project at NIT, Tiruchirapalli. The founders Vivek Ravisankar and Harishankaran K, both 24 years old, set up a forum for mock interviews with college students during placement season, helping to filter out promising candidates from the larger pool. On graduating, they were hired by Amazon and IBM, respectively, but continued to work on their start-up idea in their free time. Their company became the first Indian company to be selected by YCombinator.