This study was aimed to see the relationship of physiological age with body fat percentage, skeletal muscle and BMR. For fulfil the purpose of the study the data was collected on 60 samples during all India competition held in lovely professional university, Punjab in the session 2014-15. The samples were select with the help of purposive sampling technique under non-probability sampling technique. The age of the samples is ranges between 17-25 years. The data of the samples is collected with the help of “body composition monitor” with scale HBF- 361 and the data was collected on physiological age, body fat percentage, skeletal muscle and BMR. The SPSS22 version software was used to analyse the data by using statistical technique Pearson correlation. After analyse the data it was found that the relationship of physiological age with all the variable is .882, -.743 and .824 respectively, which is less than 0.05 significant level. Hence the null hypothesis there is no relationship of physiological age with selected variables is rejected and it was concluded that there is significant relationship of physiological age with all the selected variables.