This study examined the influence of academic self-efficacy and social support on the academic success of Indian-American and Caucasian-American undergraduate students. 200 Indian-American and Caucasian-American students completed a demographic form and five surveys. The data showed that academic self-efficacy had a significant effect on college grade point averages (GPA) for Caucasians, but not for Indians. Regarding social support, the quality of mentoring relationships was found to be twice as high for Indians than Caucasians. The total number of mentors, however, was significantly higher for Caucasians. The results of this study support theories that highlight the importance of social support on Indians' academic success, and of academic self-efficacy on Caucasians' academic success. This study also provides support of the existing literature that the construct of self-efficacy is culturally biased, and questions the utility of self-efficacy measurements for the Indian ethnicity. (Contains 4 tables.)