Here are some preparation tips you can follow to prepare boards.

Make a strict time schedule & devide the time in two parts daily routine & study with the subject wise & chapter wise.

Make your own notes & note down down the important things as it will help you at the revision also.

Do practise as much you can and afyter completing one chapter do revision again to make the particular chapter clear.

The most important be confident for your study.

Good Luck!