BMI is generally considered a good indicator of not only the nutritional status but also the socio–economic condition of the population especially adult population of developing countries. Scheduled Caste and Scheduled Tribe population of Chhattisgarh are known for their unique culture and socio–economic condition. In present study an attempt has been made to assess the nutritional status among SC/ST girls aged 16 to 22 years studying is different colleges of Raipur city. The mean BMI among SC girls varies from 19.58 ±0.68 to 20.93 ±2.01 as compared to that of tribal girls which varies from 19.19 ±0.10 to 21.39 ±1.23.However SC girls are observed to be taller (152.51±1.09 to 155.52 ±0.39cm) than ST girls (148.83 ±3.34 to 153.23 ±1.49cm) and also the same trend has been observed for body weight (SC: 46.42 ±1.54 to 50.50 ±5.31 kg; ST: 44.33 ±0.27 to 49.00 ±2.49 kg). The proportion of normal girls are found to be higher in Scheduled Tribes (75.86%) than Scheduled Caste (67.50%). However about 31.25% of SC girls and 24.14% of ST girls are observed to be undernourished. Over weight is found to be more prevalent among Scheduled Tribe (1.69%) than Scheduled Caste (1.25%). A significant association between under nutrition and socio–economic variables and also with their anthropometric measurement has been observed.