Hii

Aerospace Engineering is the best course in todays world which have a vital of scope.
Since you have not mentioned any college particularly so i am providing a very general answer. The institutes which are mentioned below are the best and have economical fees as  they are under government or state government control.

1. Anna University
2. MIT Chennai
3. PEC Pondicherry
4. PEC Chandigarh
5. Nehru College of Aeronautical and Applied Sciences, Coimbatore
6. IIT-Bombay
7. School of Aviation Science and Technology, New Delhi
8. Institute of Aviation Technology, Haryana
9. IIT-Kanpur
10. Indian Institute of Aeronautical Engineering IIAE

All these institutes have fees in the range of Rs. 30000 - Rs. 50000 per year .
Incase you wish to know about any particular college in detail, feel free to revert back.

Hope this helps
Thanks!!