India

Aviation refers to all activities involving the operation of aircrafts. Aviation courses in India deal with Flying Operation (Pilots), Aircrew (Air Hostesses), Aircraft, Air Traffic Management, Technical aspects of Flight, Aviation Safety, Regulatory Policies and economics of airport. Civil Aviation courses (as opposed to the Indian Air Force, that is, the air wing of the Indian armed forces) are necessary for those wishing to work in government or regulatory bodies of aviation or those planning to work as aviation consultants.
All aviation courses in India are supposed to comply with the rules laid down by the Director General of Civil Aviation (DGCA). I am sending you link of institutes offering various courses in Aviation.
tinyurl.com/bmvqq66
Careers in the aviation industry are much sought after as they are very well paid. For more light on the scope of Aviation sector please go through the links below.
tinyurl.com/5tyouv7
tinyurl.com/4xa8q4r

MBA admissions in US and other countries is not as straight forward as in India. MBA colleges abroad are much more specific about the job experience and profile requirements. In India you will get an interview call if you have an amazing CAT percentile. But this is not the case in most US Universities.
For MBA abroad the primary step is filling the online application form for college. Apart from that you will need to do the following:
1. Prepare for GMAT and get an amazing score.
2. Do internship and work.
3. Do some research and self development projects. Build something good and useful.
4. Shortlist the colleges you wish to apply to and go to their websites to learn more about their requirements.
5. Get recommendations from your work place. Recommendations from superiors in workplace are very valuable. Recommendations from teachers are not so valuable if you re going for MBA.
6. Check out the essay topics for your target colleges and start thinking what you are going to write.