There, first of all, is a ton of contrast between board tests and Competitive tests. You want an alternate groundwork for the two of them. You will read up NCERT books for your board tests and that will give you the information on pretty much every one of the ideas.

Presently for serious tests, for example, JEE and VITEEE one is necessary to apply these ideas in a more useful manner. These tests will test your speed and your capacity of how quickly you comprehend the inquiry and what important idea you want to apply to a specific inquiry. So I would recommend you to rehearse earlier years' question papers or some other material to get to know how the inquiries are asked,  you will find out about how to get ready. extensive practice will yield you achievement.

The very best for your exam.