DATA SOURCES The surveys were designed to gather information on not only how proving access to insurance influences households' health and financial standing, but also on how households interact with RSBY. The investigators will measure health-related behaviors, healthcare utilization, as well as household consumption and finances, including the cost of alternative methods of financing available to households. The investigators will use these outcomes to inform future design of RSBY expansion and to influence the design of other health insurance schemes. The study will obtain data from household surveys, special surveys following serious health events, and insurance claims data. Questionnaires containing anthropometrics health measurements such as height, weight, blood pressure, skin fold, lung function will also be administered. Before any data collection, informed consent was (and will be) sought from all participants in future surveys.