To get admission in top colleges for aeronautical engineering you should appear for JEE exam to get admission in NITs and IITs.

Apart, from JEE exam you can also appear in your state level exam for engineering. There are other exams as well which you can consider. Below is the

You can go for below colleges other than IITs and NITs

1- Madras Institute of Technology

2- Hindustan Institute of Engineering Technology, Chennai

3- Nehru College of Aeronautical and Applied Sciences, Coimbatore

4- IIST, Thiruvanantapuram

5- School of Aviation Science and Technology, Delhi

6- Punjab Engineering College, Chandigarh

In India it is not great at present as in other countries but demand will be high in coming days. Job opportunities are available in Airlines, Air Force, Corporate Research Companies, Defense Ministry, Aviation Companies.

Some of the top recruiters in this space are Hindustan Aeronautics Limited (HAL), Defense Research

Kindly share which country you are interested in as the criteria varies accordingly but generally to get admission in B.Tech/B.E in aerospace /aeronautical engineering in Abroad, you will have to give SAT exam along with one English proficiency test like IELTS, TOEFL.

Hope this helps!!!

Here are some of the colleges name you can prefer for Aeronautical Engineering.

Indian Institute of Space Science and Technology, Thiruvananthapuram- JEE Mains IIST admission UG.

 Madras Institute of Technology, Chennai- TNEA

Acharya Institute of Technology, Bangalore- COMED K, KCET

Dayananda Sagar College of Engineering, Bangalore- COMED K, KCET

For

Yes, you can do the same and if you want to go for M.Tech through Gate so you can write the Gate exam in any specific branch but the eligibility criteria and the list of courses offered vary college to college. Some of the IITs which offer M.Tech in Aerospace

Aeronautical engineering is all about the science of aircraft, comprising the construction, research, development, testing, maintenance and design of military aircraft, civil aircraft, and missiles. It uses computer technology in every aspect of aircraft engineering, and is a field that also involves aerospace engineering (use of aerodynamics). 

Below are the

Here are some of the colleges nam eyou can prefer for Aeronatical Engineering.

IIT Bombay- JEE Advance

IIT Kharagpur- JEE Advance

IIT Kanpur     - JEE Advance

IIT Madras    - JEE Advance

PEC University - JEE Main

Good Luck!