Mechanical Engineering

As you know Airbus and Boeing are very big companies and they only select candidates with high expertise level. First of all, you have to be a topper in every field. You can opt for aeronautical engineering from IIT or some other good institute and after that pursue Masters in aviation. With good grades you can apply for these companies and after cracking the interview, you can get a job in these global giants.

University of Toronto, University of Waterloo, McGill University, University of British Columbia are some of Canada's top ranked universities and well known for mechanical engineering as well. These are very competitive and very high grades are required. Check the university websites for admission requirements. You can also check Lakehead University , Concordia University, New Brunswick University, University of Ontario Institute of Technology and so on.

Are you happy with your current profile and package? What are your growth chances? Probably, you are the best to answer it. Good MBA costs a lot. Do you have enough finance to support it and the loss of salary otherwise you could have earned?
In my opinion, there is no better alternative but for to take up an MBA course. You can take marketing, international business depending on your area of interest. There are 100s of cases where someone has taken finance or marketing and ended up becoming a writer. Whatsoever you do, do it from the core of your heart.

Yes, you can definitely join Indian air force after completing degree in mechanical engineering. Top colleges of aeronautical engineering in India are:
1. Indian Institute of Aeronautical Engineering, Dehradun
2. Indian Institute of Space Science and Technology, Thiruvananthapuram
3. PEC University of Technology, Chandigarh
4. Sathyabama University, Chennai
5. UPES, Dehradun

Yes, America is a good option to pursue aeronautical engineering but you should not rule out the option of studying from India as well. India is a growing country in this field and people are getting very good pay as well. I can list down a few colleges I know of in India:
• Indian Institute of Aeronautical Engineering, Dehradun
• Indian Institute of Space Science and Technology, Thiruvananthapuram
• PEC University of Technology, Chandigarh
• Sathyabama University, Chennai
• UPES, Dehradun

Aeronautical engineering is more of a specialized stream where you will limit your job opportunities to the respective segment of industry. Thermal Engineering, Nano Technology, Fluid Mechanics, Industrial Engineering etc. are also in demand. But if you aim to push yourself into the academic stream, then any post graduation will do.

Even with a B.Tech, you can put yourself into the military track.