This document discusses the impact of per capita income on India's middle class. It begins by defining per capita income and how it is used as an indicator of economic welfare. It then provides details on India's current per capita income levels and the challenges to continue growing this number. The document estimates that India's middle class will grow significantly in the coming decades as per capita income increases. It describes how the growing middle class is becoming an important consumer market and discusses the key drivers that will change their consumption patterns over time.