Hello,

IIITH and IIIT-B are two of the topmost IIITs in the country and the trick is that they are private. Thus, there is no reservation system in these colleges and admission is provided purely on the basis of your rank and merit. I would suggest you to try getting good marks in JEE mains to gain admission in these premier institutes. Go through these links for the detailed process of admission.

 https://engineering.careers360.com/articles/iiit-hyderabad-btech-admission

https://www.careers360.com/university/international-institute-of-information-technology-bangalore