It is a tough choice dear.This time only you can take the decision.But I can help you if you are very much confident about your preparation then go for Nata.What I have faced is that I got 21 rank(including girl quota) in upsee(b.arch) still didn't get government college, but there are many opportunities to have private institutions through upsee.dont get confused or regret just for nata.

hopefully it will work for you

thanks!!