Rashtriya Bal Swasthya Karyakram (RBSK) is an important initiative aiming at early identification and early intervention for…Rashtriya Bal Swasthya Karyakram (RBSK) is an important initiative aiming at early identification and early intervention for children from birth to 18 years to cover 4 ‘D’s viz. Defects at birth, Deficiencies, Diseases, Development delays including disability.