The optimal way of feeding infants for 6 months is called as Exclusive Breastfeeding. NHFS 5 data states that exclusive breastfeeding was seen only in <50% of the children.Thus the aim of Global Nutrition Targets 2025 is to increase the Exclusive Breastfeeding rate to at least 50%.The aim of the study is to assess the LATCH Score as a predictor of exclusive breast feeding Materials and Methods:A cross sectional study was conducted from May 2021 to April 2022 in Dhanalakshmi Srinivasan Medical College ,which is a tertiary care centre,Siruvachur, Tamil Nadu. Based on inclusion and exclusion criteria the total study participants recruited were 60.Demographic data and laboratory investigations were collected.The data was analyzed using IBM SPSS version 21.P value less than 0.05 was considered to be statistically significant. Results:The mean age of the study participants was found to be 26.10 ± 3.2 .Majority of the study participants delivered male baby 31(52%).38(63.3%) mothers delivered through Normal Vaginal delivery. Multigravida were more in our study 36(60%).The latch score tends to increase at the time of discharge. There is a positive correlation (r=0.6)seen between latch score and weight gain percentage. Conclusion: Thus our study states that latch score can be used to improve the breastfeeding and postnatal weight gain which improves the survival of the newborn .It is a simple tool that can be used to identify the mothers at risk of early cessation of breastfeeding and inadequate weight gain in babies