What is the validity of the MAT score ?

The MAT exam is held four times a year and the result of each exam is valid only for a year since the declaration of the result, after a year you have to apply for the paper again. There is no limitation on the total number of attempts in MAT exam, the candidate should be just able to meet the eligibility criterias set by aima. So even if you clear the exam there is no rush to take admission in any B-school,if you think you can do a better job in your next attempt then you are very much welcome to wait for the next exam.