You will need to attend private colleges because your NATA score of 120+90% won't let you enrol at top-ranked government institutions. A few recently established colleges are far superior to government institutions. Apply there immediately. You should research the World School of Planning & Architecture at the World University of Design in Sonipat. However, they only have 40 seats, so you'll need to move quickly to see whether they are still available. If you can enter, it would be excellent.

Hope I have answered your question. All the best!