This document discusses various sources of vital statistics in India, including population censuses conducted every 10 years since 1881, the civil registration system for recording births and deaths, the sample registration system providing annual estimates of birth and death rates, national sample surveys conducted by NSSO on topics like household expenditure, and various health surveys like the National Family Health Survey and District Level Household Survey providing data on maternal and child health, reproductive health, and family planning. It provides details on the objectives, coverage and administration of these different systems and surveys.