In this study a very important aspect of life, leisure activities have been concerned with the BMI. The relationship was tested between leisure activity and BMI. For this study 150 students of Chandigarh, the city beautiful based school were selected as subjects and their height and weight were measured to measure their BMI and Godin Leisure-Time Exercise Questionnaire (1985) was used to collect data for Leisure activity and to measure the level of physical activity done in leisure activity. The result had shown significant relationship with r-0.186, and P<0.05. The result was significant but correlation was not as strong as the value was very less. Finally it can be concluded that both the value of one variable increases with increase in the value of second variable, so leisure activity must be performed in order to attain better health.