The document provides operational guidelines for Rashtriya Bal Swasthya Karyakram (RBSK), a new initiative in India aimed at screening over 27 crore children from 0 to 18 years for birth defects, diseases, deficiencies, and developmental delays including disabilities. The program will be implemented through mobile health teams that conduct screenings and refer children for treatment. The guidelines describe the target populations, health conditions to be screened for, implementation mechanisms, and reporting and monitoring procedures. The overall goal is to improve child health through early detection and management of health issues.