Abstract: A cross sectional study among 1000 school going children of age group 6 – 16 years was conducted to study the relation of Blood Pressure with variables Like Body Mass Index, Socio Economic Status, Family History of Hypertension, Age and Sex at our tertiary care hospital Krishna Institute of Medical Sciences Deemed University, Karad. 1.The study group had 100 (10%) children of 13, 14, 15 and 16 years, 90 (9%) children of 6, 8, 9 and 12 years and 80 (8%) children of 7, 10 and 11 years. 12.Systolic hypertension was observed in 13.3% of overweight and 6.7% of obese children. Systolic prehypertension was observed in 11.7% of overweight and 13.3% of obese children. BMI was significantly associated with pre hypertension and hypertension (SBP) in children (p<0.001). Diastolic hypertension was observed in 16.7% of overweight and 6.7% of obese children. Diastolic prehypertension was observed in 18.3% of overweight and 20% of obese children. Only 1.7% and 0.9% of prehypertension and hypertensive children had normal BMI.