IIT Kharagpur, IIT Madras and IIT Kanpur B.Tech Aerospace closed at nearly SC Rank 1k in JEE Advanced 2020. Hence anywhere above SC Rank 1k in JEE Advanced, you have fair chances of securing a seat in Aerospace in one of the IITs.
For more information about Top Aerospace Colleges do follow the link below
https://engineering.careers360.com/colleges/list-of-aerospace-engineering-colleges-in-india
College Comparison based on Courses, Placement, Rank, Fee
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile