Hii buddy you have less time left now but no problem as I think you will be going for the revision now,as we know that now isc is now taking cbse pattern of question paper but don't worry questions are from the book only,for physics start revision from section c cause it will take two days completely,then go for b and a section,same thing for chemistry go for physical first then organic and in maths start from last chapters it will help to complete the syllabus in time.Good luck .