Using the college predictor, I got list of pvt colleges. So how to apply to them? Through which counselling?

First, you need to check which college has chance to accept your rank using the help of JEE college predictor in that you have to enter your rank or else marks, then it shows the pvt colleges list which is suited to your rank.

If you want to know which colleges are accepting your rank, you can check it with the help of JEE College Predictor where you have to put your rank or marks and you will be shown a list of the colleges according to their ranking with their placement fees and everything.