Good Afternoon

Hope you doing good, As per your query you got 90% in boards so according to me 120+ in NATA will be enough for a good college because NATA marks out of 200 will be converted into marks out of 100 and your 12th marks will be added to it which will give you your Final Merit score. Anything above 130 will get you into a very good college (Private) and a score above 150 is required if you want admission in a government college.

Hope you found it helpful

All the Best