Hello Aspirant,
There are not many institute which provide diploma in aerospace engineering,
I am listing below a link in which you can check for the three colleges mentioned below and read about those colleges and even download there brochures to acknowledge yourself better.
https://engineering.careers360.com/colleges/list-of-diploma-in-aerospace-engineering-colleges-in-india
I hope it helps.
College Comparison based on Courses, Placement, Rank, Fee
Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile