Hey Aspirant.
See the lastest IITs are not that much in quality as that of the older ones as they have not been provided much seats under jee advanced . If u are getting a seat in other good NITs , IIITs then u should be going for that rather than choosing newer IITs. As just for using the tag name of IITs won't provide u a quality education but yeah u can say that u are studying in an IIT. Hope this helps.
Ask if any query. Good luck