As we know, exam time is most difficult for the student whether they study correctly or not. This time is also required mental preparation which comes through more than ten times revision and then memories the topic without watching the notes, this best way of review. Other thing is yoga and meditation for concentration and remembering the words. 3rd one is asking and answering the topic with friends, which also improve your confidence.
The last one is, remains cham down, no talk before 3-4 hour of exam, which boosts your memory in the right direction.
If someone follows these things, then definitely secure excellent marks.
I have crack several examinations, including gov job by following these step properly.