The document discusses India's healthcare delivery system. It defines key terms like health care delivery system and health care services. It outlines the objectives of primary health care and its principles like equitable distribution, community participation, and appropriate technology. The three levels of health care - primary, secondary and tertiary - are defined along with the services provided at each level. Primary health care is aimed to be universally accessible and cover most health needs through preventive, promotive, curative and rehabilitative care. It is provided through sub-centers, PHCs and ASHAs at the community level.