Dear Aspirant,

There is No restriction on the number of attempts of GATE. Even many professors and lecturers gave the exam every year to test their knowledge. You can give multiple shots at the GATE exam if you are not able to qualify for the exam in the first attempt. Moreover, the validity of GATE score is 2 years till 2014, from 2107 the validity is increased to 3 years.

Here are some links for you:

https://engineering.careers360.com/exams/gate

All the best. Thank you.