Yoga is a cultural heritage of India. It is the path of systematic life style. Yoga has its origin in India during the pre-historic era. Yoga is based on its spiritual philosophy and it has a wide range of positive impact on health and wellness of an individual. During the ancient day, practice of yoga was somehow religious in nature. With the evolution of humankind, the concept of yoga got modified and become much more applied as well as therapeutic in nature. Modern yoga focuses towards health and wellness of an individual. It helps in attaining amiable harmony between human body and mind. In this world of globalization, people are getting more and more vulnerable to diseases and susceptibilities; even if the children are no exception and getting prey to numerous health problems in their tender ages. Yoga is the best mode of practice which can give human being a holistic health. Among the health problems obesity is a serious issue which is curbing the children. Keeping in view the problems of obesity in children, the scholars have conducted this study. For the purpose of the study, the author randomly selected 60 boys (30 control and 30 experimental) from the high schools of West Bengal as subjects of his study and recorded their personal data like are height and weight and involved them in a 12 weeks’ yogic intervention. He estimates selected skin folds like biceps, triceps, suprailiac and subscapularis and thereafter calculated their body composition before and after the treatment. With the help of data analysis, the scholar arrived at the conclusion that the yogic intervention improved the body composition status of the obese school children.