It is a concern for many students: How will I be able to perform well in the board exams along with acing the JEE? Should I focus on preparation for board exams in March, or the JEE in April? Is it even possible to ace in both? Well, yes it is. All you need is a strategy.
This article focuses more on CBSE boards and JEE, but it might be helpful for students of other boards as well, since it discusses an effective approach to prepare for any examination.
Having gone through the phase, I can tell that the syllabus for both JEE and CBSE consists of same topics in the core subjects: Physics, Chemistry and Maths. The other two subjects might have English and other optional subject you might have chosen. Moreover, the syllabus of CBSE exams is a smaller subset of the syllabus for JEE in terms of the breadth of the topics. It really is not a big deal if you think about it. Preparing for CBSE would be like warming up for the JEE.
Also, you need not focus on the board examination....