INTRODUCTION: Breastfeeding is essential as it provide optimal nutrition, strengthens infant immunity and it provide health benefits for both mother and infant. Therefore, this cross- sectional study aimed to evaluate the knowledge, attitude and practice (KAP) of breastfeeding in nursing mothers at a tertiary care teaching hospital. The study had been conducted in the Department of pediatrics, SVRRGGH, Tirupati. METHODOLOGY: we approached over 240 nursing mothers approximately and out of them, only 200 members agreed to participate. The study was carried out over six months. RESULTS: Among the 200 mothers, 59.5% were aged between 18–25 years, and 79.5% were housewives. Regarding delivery, 56% had normal vaginal delivery. Knowledge levels revealed that 87.5% believed breast milk was superior to formula, 83.5% accepted colostrum feeding, and 70% acknowledged its role in boosting immunity and 37% initiated breastfeeding within 30 minutes. Attitudinal data reflected that 61.5% felt emotional fulfilment during breastfeeding and 47.5% of mother not preferred infant formula. Practice data shows that 62% of mother are nursing the baby more than 8 times in a day, 67.5% of mother are likely to start complementary feeding at 6 months, 77% of mother fed only breastmilk to their infant for the first 6 months, 76% avoided pre-lacteal feeds. CONCLUSION: Our study highlights that even though there is adequate knowledge present in mothers, there is still a need for awareness, particularly in terms of exclusive breastfeeding, continued practices and complementary feeding to improve the breastfeeding practices, which can be overcome by conducting programmes on promoting breastfeeding by the government or healthcare providers. The health benefits for both mothers and infants can be enhanced by creating a secure environment for mothers to breastfeed in public places.