The study was to investigate the effect of Modified Series of Pawanmuktasana in improving back and leg flexibility of sedentary women. For the study, 20 sedentary women ranging between 45 to 55 years of age, and resident of Saharanpur, U.P(India) were selected randomly. These 20 participants were then divided equally into two groups i.e. experimental group and control group. Experimental group underwent the training programme for six weeks (six days/week) regularly whereas the control group did not face administration of any kind of training programmes. Pre-test were conducted for both the groups prior to the administration of training protocol. Also, post-test were conducted for both the groups after six weeks. I found no significant difference in control group in terms of leg and back flexibility. But I witnessed a significant difference in the leg and back flexibility of sedentary women in experimental group. Therefore I concluded that daily practice of modified series of pawanmukatasana was beneficial for sedentary women.