The Graduate Management Admission Test is the official test required by Universities abroad to pursue a degree in management.

The Educational Testing Service (ETS) under the sponsorship of Graduate Management Admission Council (GMAC) publishes it.

Your GMAT score is the key factor that will determine your admission to more than 1700 management programs in US, European, and other schools worldwide. The admission committee also considers information such as, academic performance, work experience, statement of purpose describing your career goals, and references.

Business schools use Sores to help assess whether you possess the foundation upon which to build a successful business career--or at least, b-school career--so the test is meant to carefully evaluate specific analytical skills. Good scores can open doors. The GMAT CAT is probably unlike any other test you've encountered in your academic career. You need a wide range of both knowledge- based and test -taking skills to excel on it. So be sure to check out the question-types you'll see: Critical Reasoning, Sentence Correction, Reading Comprehension, Problem Solving, Data Sufficiency, and the Analytical Writing Assessment. The good news is that you don't have to be some kind of computer whiz to do well on the GMAT CAT. 

GMAT Test Pattern

The GMAT consists of 3 multiple-choice sections - Analytical Writing, Quantitative and Verbal. Apart from the traditional sections, the GMAT includes an essay section (mandatory only for certain universities) called the Writing Assessment.