For short term , I must say new iits may lack professors, alumini associationd , prooer guidance and thus may take time to firmly establish themselves
Bt once they have done with this situatuions , then no other iits will willstand against them.yes of course they are iits and one thing for sure iits>nits
Look the popularity of new iits is going to be increase in thr nxt upcoming years and with time it will surpass the image of other colleges.
Later if u will mention that u have graduated from iitx , u will be treared fair enough.