India

Hello Bharath,
The following are the top MBA in aviation colleges in Karnataka:
1)Hindustan Academy, Bengaluru
2)Cirrus Aviation Academy, Bengaluru
3)Skybird Aviation, Bengaluru
4)Institute of Indian Aviation and Allied Management Studies, Bangalore
5)Academy Of Aviation & Engineering, Bangalore
6)Christian College, Bangalore
7)Christ university, Bangalore
8)Government Flying Training School, Bangalore
9)AIMS Institutes, Bangalore
10)IBA's Business Academy, Bangalore
11)St. Joseph's College (Autonomous), Bangalore
12)St.Claret College, Bangalore
13)T. A. Pai Management Institute, Manipal
14)Kristu Jayanti College, Bangalore
15)Symbiosis Institute of Business Management, Bengaluru
16)Indian Institute of Management, Bangalore

If you have 80% in 12th, then I don't think that you need to pay any donation as you can get direct admission. Some of the best colleges are:
1) Shaheed Shukhdev College (you miss the deadline).
2) IP university (you miss deadline)
3) Amity University, Noida (good chances are there and trust me that this is really good college for BBA, but only Noida campus).
4) Symbiosis Pune (you can check but I think deadline is out u can pay donations)
5) Christ University, Bangalore (check there, if you can pay donations).
6) Asian School of Business, Noida ( I also took admission here because this is one of top colleges in Delhi NCR, you can get direct admission with no donation. Fee is also low)
I hope this will help.
Kindly up vote the answer if you feel satisfied.
Ask any query at anytime.
Good wishes dear.