Hey , MAT is national entrance test and GMAT test is conducted worldwide. I am here giving you difference of both the test , by the same you can know which is better for you .

MAT Test :
MAT (Management Aptitude Test) is conducted by the All India Management Association (AIMA), New Delhi.

Written tests

Exams are conducted 4 times in a year in the month of February, May, September and December.

Syllabus include topics :

Quantitative aptitude and Math
Logical & Critical Reasoning
Data Analysis & Sufficiency
General Knowledge
General English Language and Comprehension

GMAT Test :
GMAT(Graduate Management Admission Test) is conducted by the International Business Schools/Universities from all over the world.

Computer adaptive test

GMAT is given year round during normal business hours, not more than 5 times in a year.

Syllabus include topics :
Analytical writing assessment
Quantitative reasoning
Verbal reasoning and
Integrative reasoning