Background: Obesity is a complex, multifactorial, and largely preventable disease that is emerging among all ages and socio-economic groups. The rapid increase in the prevalence of childhood obesity over the past few years is a result of environmental and cultural influences rather than genetic factors. Material &Method: The present study was a school based cross sectional study carried out among the students of government and private schoolsof Gwalior city. Written permission was taken from the Head/Principal of the school and the time suitable for data collection was enquired. Out of total 1000 selected as study participants i.e. school children of Gwalior city, 50 percent each were taken from Government and Private schools. Result: Of 327 overweight/obese study participants164 were girls and nearly same numbers of boys i.e. 163 were in this category but girls have higher proportion of obesity grade I/overweight (46.2%) as compared to boys (33.3%). Among study participants 432 students had family history of overweight / obesity which has significant difference with non-overweight / non-obese, however family history of overweight / obesity was not correlated with overweight / obesity in their children. Conclusion: The proportion of overweight/ obesity in both genders of teenagers is increasing. Students from private schools, from joint families, have family history of overweight/ obesity or NCDs were more obese than their counterpart groups. Spending lots of hours watching television coupled with junk food/fast food intake and less physical activity were also emerged as contributing risk factors for overweight/ obesity in study population.