<p>The 3,000-year-old Indian caste system continues to impact the experiences of Indians across the world. Psychological conceptualization and literature with Asian Indians (AIs) in the U.S have largely focused on the experiences of AIs as a marginalized group in the U.S. and within-group experiences such as casteism has not been considered as a framework for analysis, despite its pervasiveness. As counseling psychologists with values of social justice, caste is critical to consider as a unit and framework for analysis in understanding the lived experiences of all AIs in the U.S. This dissertation consists of two parts that are conceptually related to each other. The first chapter reviews historical, socio-political, and psychological factors in the conceptualization of casteism and theorizes Caste Critical Theory (CasteCRIT), which is based in Critical Race Theory. The second chapter assesses AI psychological literature from the lens of CasteCRIT. The empirical study aims to develop and validate a scale to measure casteist beliefs based in the key tenet of CasteCRIT that casteism is endemic. The Caste Beliefs Scale (CBS) is a 15-items scale with a correlational factor model and measures institutional and interpersonal caste beliefs in the U.S. Implications are discussed for future research. </p>