If you want to pursue Aerospace Engineering then the best is IIST. As IIST is a great college to learn from the best space scientist in India i.e., the scientist of ISRO. Also having a +8GPA in the coursework you will get a direct chance to be a scientist at ISRO.

Apart from this IIT Kanpur, Madras, IIEST Shibpur etc are the best among IITs. In private sector you may think of SRM.

To know more about Aerospace Engineering you may visit the link below (if you are asking this based on such exams) :

https://www.careers360.com/courses/aerospace-engineering-course

I hope my answer helps. All the very best for your future endeavors!