The Graduate Record Examination (GRE) is required for applying to MS, MA and Ph D programs in graduate schools worldwide. Additionally, some B-schools have started accepting GRE scores in lieu of GMAT scores for their MBA programs although the equivalence of scores is not clear yet. The GRE General Test is a common parameter judging aspirants from varying educational and cultural backgrounds for all universities.
Apart from the GRE score, schools also review Undergraduate GPA, Letters of Recommendation, duration and quality of work experience (if required) and Statement of Purpose (SOP) or essays. Officially, the GRE score is valid for 5 years but a fresh score could be demanded by premier universities after every 3 years. One can take the exam once in a month and maximum five times in a year. A computer-adaptive computer-based test, the GRE is conducted by Educational Testing Services (ETS).