THE TIMES OF INDIA - July 20 - Traditional matrimonial sites in India use markers such as caste, community, and horoscope to determine matches. New start-up TwoMangoes.com is leveraging self-learning behavioral matching algorithms to determine compatibility. The site claims 1,000 new sign ups per day. Social dating start up MyMitra is ranking people by achievement and commitment using scientific matching. It has signed up 500 users. Another site using scientific algorithms is DateIITians. It has over 10,000 registered users, 40% of whom are IIT and IIM students and graduates. Group dating site StepOut.com has over 4 million registered users in India.