Core self-evaluations (CSE) was developed by Judge and his colleagues in 1997 and developed a global scale for measurement in 2003. This paper examines the reliability and validity of a measure for employees of Information technology (IT) companies in India. Data was collected from 410 respondents of three major Indian IT companies. Exploratory factor analysis were conducted to test its stability, reliability and validity. In this study, four factors were identified as self-esteem, neuroticism, generalized self-efficacy, and locus of control to measure CSE. The result showed the reliability coefficient (Cronbach’s Alpha) of 0.88 which is higher than 0.70. The convergent validity and discriminant validity coefficients are within the established criteria. Hence, core self-evaluations scale (CSE) is a reliable and valid scale for measuring CSE among Indian IT professionals.