Aeronautical Engineering

No, this is a region specific exam. You should focus on the national level exam i.e. JEE MAINS, then only you will get admissions in a good college for aeronautical engineering.
Top colleges for this course are:
Indian Institute of Aeronautical Engineering, Dehradun
Indian Institute of Space Science and Technology, Thiruvananthapuram
UPES, Dehradun
PEC University of Technology, Chandigarh
Sathyabama University, Chennai

He needs to give the MUOET exam. The forms come out in the month of January. It's an online exam and has basic Physics, Chemistry, Mathematics and English question.

Yes, you can get admission in BE in aeronautical after Diploma in ME. Aeronautical engineering is also a part of mechanical engineering and it involves mechanical engineering. So you are eligible for that. You have to check the colleges offering lateral entry course in aeronautical. Also, one can change the field of study also after Diploma.

Hello Vivek,
You can get a job in IAF, Army or Indian Navy. Besides this, you can work in DRDO, ISRO or any of the private companies who have either set up factories or are setting up industries seeing the push of the new government for 'Make In India'. Along with these, small scale industries are also coming up in the support of big companies. Thus, you can see, type of job will invariably be maintenance. However, if you are interested in research, then DRDO is the right option.
All the best.

Yes, you can. As per me, your decision is a waste of time and money. You have done your Diploma in the same field, so try and make your career in the field in which you completed your graduation.

Graduates with B.Tech in mechanical engineering are eligible for M.Tech or MS in aeronautical engineering in India and abroad.

You can go for it. Aeronautical engineers are in demand.

You can go for it. Aeronautical engineers are in demand.

There is not much, but if you pursue from a good institution German companies will surely recruit you.

There are few colleges which take admission directly on the basis of diploma percentage but for colleges that accept through entrance test, a minimum of 60% is required with top colleges demanding a percentage of 75.