hello aspirant,

As of now its tough to estimate what is the exact mark you need to get more than 99 percetile but based on previous year analysis we will help you.each year the cutoff changes due to many factors like total students appearing for exam,difficutly level etc factors so note that as each year it changes so are your chances into colleges.now to fetch a percentile more than 99 you need a minimum of 180+ CONSIDERING IF THE PAPER IS MODERATE.and scoring more than 180 makes it easier even if the cutoff rises.so target high and work for it.for more information you can refer to:

hope this helps,

thankyou.