The health care delivery system in India is organized as a three-tier structure to ensure that every citizen has access to essential health services. This system is designed to provide preventive, promotive, curative, and rehabilitative care, while ensuring an effective referral mechanism from the village level to specialized hospitals. The three tiers consist of Primary Health Care, Secondary Health Care, and Tertiary Health Care. This hierarchical arrangement helps in reducing the burden on higher-level hospitals and ensures equitable distribution of health services across rural and urban areas. The first tier is the Primary Health Care level, which serves as the foundation of the Indian health system. It is the first point of contact between the community and the health care system. Primary health care aims to provide accessible, affordable, and comprehensive health services to the population, especially in rural and remote areas. Institutions functioning at this level include Sub-Centres (SCs), Primary Health Centres (PHCs), Health and Wellness Centres (HWCs), and Urban Primary Health Centres (UPHCs). Sub-Centres are the most peripheral health institutions and cater to a population of about 3,000–5,000 people depending on the geographical area. They are staffed by Auxiliary Nurse Midwives (ANMs), Multi-Purpose Health Workers (MPHWs), and Community Health Officers in upgraded centres. They provide maternal and child health services, immunization, family planning, nutrition education, disease surveillance, and basic treatment. Primary Health Centres act as referral units for Sub-Centres and provide outpatient care, minor medical procedures,