This paper shows psychological test or assessment is a written or verbal assessment to determine a person's personality, behavioral, neuropsychological, intelligence-related, and other traits. These assessments are in the form of questionnaires, and answers reveal different traits of a person. Organizations are also conducting these tests to make better decisions regarding promotions while selecting leaders among their existing employees, identifying reasons behind failures, and estimating the possibility of mishaps. In this paper presents overview the how to select employee in corporate sectors using psychological testing along with various intelligence test performed