The document outlines the Indian Public Health Standards (IPHS) guidelines for sub-centres from 2012. It discusses the background and objectives of the IPHS, which are to specify minimum essential services and maintain quality of care. Sub-centres are categorized as Type A or B depending on delivery services provided. Manpower requirements and services to be provided, including maternal and child health, family planning, immunization, and disease surveillance are described. Logistics like drug kits, registers, and equipment/furniture requirements are also outlined. The IPHS aims to strengthen sub-centres and assure accessible quality healthcare services.