Hello

Your Possibilities of getting a IIIT or NIT are pretty much high.

You can go for any NIT or IIIT with this score but for getting admission into CSE or IT branch , You must go for the lower NITs or IIITs as the upper ranked Institutions face high competition and Chances are not easy.

With this rank it will be very difficult for you to get a seat in any iiit. Even if you are able to get a seat then that will be in the lower IIIts and not in the top ones. Therefore, you should aim for other state level engineering colleges and private colleges where you might have a better chance of getting admission. You can also drop a year to prepare for JEE. Hope this helps.