The purpose of the random group experimental study was to find out the effect of yogic practices on Body Mass Index among middle aged obese men. It was hypothesized that there would be significant differences on Body Mass Index among middle aged obese men due to yogic practices than the control group. For the purpose of the study, 30 middle aged men were selected randomly from Chennai, between the age group of 35 to 45 years and they were divided into two groups A and B having 15 subjects each. Pretest was conducted for the two Groups (A and B) on the selected dependent variables before the start of the training program. Group A was given yogic practices; Group B (Control Group) didn’t receive any specific treatment, but in active rest. After the experimental period of eight weeks, the two Groups (A and B) were retested again on the same selected dependent variables as post-test. Analysis of co-variance (ANCOVA) was used to find out the significant differences between experimental group and the control group. The test of significance was fixed at 0.05 level of confidence. The results of the study on the selected Body Mass Index proved that the Experimental Group showed significant differences than the Control Group due to Yogic practices. The hypothesis was accepted at 0.05 level of confidence Hence, Yogic practices decreased Body Mass Index of middle-aged obese men.