You can check the top colleges below

Manipal Institute of Technology, Manipal

PEC University of Technology, Chandigarh

Indian Institute of Space Science and Technology, Thiruvananthapuram

Sathyabama University, Chennai

Madras Institute of Technology, Chennai

Dayananda Sagar College of Engineering, Bangalore

To check the complete list you can refer below link

List

If you are interested in Aeronautical engineering you can take admission in below colleges

Manipal Institute of Technology, Manipal

Acharya Institute of Technology, Bangalore

Dayananda Sagar College of Engineering, Bangalore

Nitte Meenakshi Institute of Technology, Bangalore

MVJ College of Engineering, Bangalore

Malla Reddy College of Engineering and Technology, Hyderabad

For

Hi vishnu

To get a free admission in any college in aeronautical engineering there are so many ways but you should be more talented. By getting more than the required marks in EAMCET you can get free seat in college. Or you can write college entrance test of particular college

Not all NITs and IITs offer B.Tech in Aeronautical Engineering as few of them offers B.Tech in Aerospace as there is no such big difference in both the courses because both of them belong to the same parents. Also, there are few colleges which offer this program as you can

In order to take admission in Anna University for Aeronautical branch you have to apply for TNEA exam.

There will be no entrance exam for TNEA only counselling will be there.

It will provide admission on the basis on 12th class. 

Registration for TNEA will start from tentatively in first

These are totally different course from each other.

It totally depends on your interest which course you want to prefer.

Aeronautical Engineering- If you want to make your career in aircraft, airplanes, jet planes and space shuttles you can opt for aeronautical engineering. 

Average salary in this field is around

Hi, The merchant navy is not exactly about jobs abroad. Also I am not sure of taking up courses especially online ones as they be recognised or not. I think you should ask your college and teachers about this as they will know better. Personally I wouldnt suggest doing two