To find out the correlation between body composition and functional performance of elite Indian junior tennis players. Tennis academies all over Delhi and National Capital Region 100 elite Indian junior tennis players. The anthropometric data (BMI, fat mass, height, weight, BMI, girth measurement, Waist- hip ratio, fat mass and muscle mass) of each athlete has measured and has been correlated with all the three functional performance tests. Pearson's correlation test was used to correlate the anthropometric data and functional performance test results. The study result showed there was a correlation exist between some of the anthropometric variables (e.g.: muscle mass, percentage of fat, Girth measurement,) with functional performance at the same time there was no correlation exist between some of the anthropometric variables ( E.g.: BMI, Waist Hip ratio,) with functional performance.