The present study was aimed to see the effect of brain hemisphere domination upon Intelligence of Cast. For the present study, 100 boys from age group i.e. 12, 13, 14 and 15 years respectively were selected from various schools of Chhattisgarh. In all 400 adolescent boys were selected. To assess left, right and integrated dominance of brain, Brain Dominant Hemisphere Test (B.H.D.T), prepared by Agashe and Helode (2007) was used. Malhotra's (1984) Mixed Type Group Test of Intelligence (MGTI) was used. This has two parts i.e.verbal and nonverbal intelligence test. The results reveal that Intelligence of General Cast Boys with integrated brain hemisphere domination was found to significantly higher than the Intelligence of Other Cast Boys with left and right brain hemisphere domination. It was concluded that brain hemisphere domination influence the Intelligence of Cast.