The book is based on a research study conducted with a objective to find out the comparative effect of different variations of bhastrika pranayama on obese middle age people. Hundred middle age people, with age ranging between 45 to 55 years were randomly selected as subjects. To find out the comparative effect of different variations of Bhastrika Pranayama on obese middle age people, Analysis of Co-variance (ANCOVA) and Trend Analysis were employed at 0.05 level of significance. The study is very useful for researchers and yoga practitioners.