Demographics of Chennai
Chennai, along with Mumbai, Delhi and Kolkata, is one of the few Indian cities that are home to a diverse population of ethno-religious communities. According to the 2011 census Chennai then had a total population of 6,748,026 at a density of 15,840 per square kilometre spanning across an area of 426 km2; the sex ratio was 1025 and literacy rate was 90.33%.