Nearly how much questions I should attend to crack IISER entrance test in SCB stream?

This is a very general thing or a common sense to attempt all the question in apaper provided there is no negative marking,.....and ye you must practice solving the previous year’s papers to be familiar with the style of questions being offered,.....get a coaching from a well established and renowned institution,......try to strengthen the main subjects.....and then choose a leading institution out of an extensive list.....you may go for – Shiv Nadar Uni, Dadri,...............Bhagalpur College of Engg, Bhagalpur,...........Lovely Professional Uni, Phagwara,..............BITS sindri, Dhanbad