Hello,

Generally you cannot say any particular marks which you can score to get in the colleges because every year you can see the changes in the cutoffs of every colleges wether it will increase or decrease depending upon the entrance examination and number of students applying. Now seeing at you i can guess that you are preparing for the JEE main exam and you need a target or aim to get in any good colleges so for that you have to be well prepared and your aim should be very high so this will make your chance more of getting any good colleges hence, for JEE main examination you have to aim at least above 90 percentile to 95 percentile than you will have a good selection choices between the colleges you want.

Thank you..