NATA score of 99 is not good enough to get you entry to top ranked government colleges and so you’ll have to go to private colleges. There are a few new and emerging colleges that are much better then government colleges. You should apply there. I suggest you look up World School of Planning & Architecture, in World University of Design, Sonipat. They have however only 40 seats, so you’ll need to hurry up and see if they are still open. It’ll be very good if you can get in there.

You can give the second round of NATA but the scores are unlikely to improve much and by that time if most seats get blocked then in spite of getting an improved score you’ll not be able to get a seat. I suggest you book a seat whichever good college you can manage.