Common admission test is a mandatory entrance examination conducted by the India Institutes of Management for granting admission in the management programs of all the six IIMs. Besides IIMs, there are other management schools too, which consider the CAT scores as the main eligibility criteria for enrolling students in their management courses. After successfully clearing the CAT test, you have to clear the group discussion and interview rounds as well to secure a place for yourself in MBA program. For details of CAT: CAT. Graduate Record Examination (GRE) has been developed to evaluate the verbal, analytical and mathematical skills of the candidates. The scores of this standardized test helps the graduate schools (conducting courses other than business related studies) to assess the advanced study potential of their prospective students. For details: GRE. Graduate Management Admissions Test or GMAT is a 3-½ hour standardized test undertaken by graduates who are keen to study MBA programs. This test is designed to evaluate the potential of students by assessing their mathematical, verbal and analytical writing skills. GMAT test, initially prepared for use by the Institutes/Universities of U.S. offering programs in management and business, is now used as a criterion for allotting admission to students globally by more than 1700 universities/institutes.