Indian health structure is divided into how many tiers?

3 tier system

India’s health infrastructure and health care is made up of a three-tier system —primary, secondary and tertiary. Primary health care includes education concerning prevailing health problems and methods of identifying, preventing and controlling them. Hospitals which have better facilities for surgery, X-ray, Electrocardiogram (ECG) are called secondary health care institutions. They function both as primary health care provider and also provide better healthcare facilities. The tertiary sector also includes many premier institutes which not only impart quality medical education and conduct research but also provide specialized health care.