How to study for KVPY stream SA
So now if you are PCM student
If you are taking coaching for JEE Advanced, and understand the concepts well, the strategy should be to strengthen your concepts by practising and finish the Class XI syllabus on your own from NCERT for chapters that you have not done in coaching till November. Once you do this, do past year question papers to improve time management.
If not taking coaching, then you should first pick any question paper from the past ones and try attempting questions from topics you have studied. If you can do most of the questions from topics you have studied till then, then your level of understanding is good and you can follow same advice as for coaching students mentioned above.
However if not, you need to improve your problem solving skills and concepts, by solving books used for JEE preparation.