Hello Arun,

Stick to the syllabus.

Get a thorough picture of the curriculum for all courses. You should prepare not just from reference books, but also from your curriculum materials, such as NCERT books (in case of CBSE students). Syllabus books are created with the rigid examination syllabus in mind. Stick to the curriculum and read properly.

Work on your Weaknesses

Examine your weak spots and consider how you may strengthen them. Examine your answer papers from class assessments and pre-board exams to identify any errors. Make a note of your weak spots for each topic and begin working hard to strengthen your weak points.

Work on Sample Papers

Every day, solve previous year's question papers and sample papers. Make a point of completing the sample documents supplied by the officials. After you have completed the paper, grade yourself according to the marking scheme.

If you inform me about your stream then I can give you detailed tips.

Hope this helps.