This document provides a summary of a large survey of over 285,000 mobile phone users in India regarding their demographics, psychographics, and mobile usage behaviors. Some key findings include: - Around 250 million distinct mobile users in India as of mid-2009, representing 22% of the population. - Urban users tend to be younger (25-35 years old) and have higher incomes than rural users. - The top mobile service providers based on number of connections are Reliance, Airtel, and Vodafone. Nokia has the largest share of handsets used. - Urban users on average own 1.5 phones and 4.3 connections per household. They spend significant time playing games