Aviation

I am happy to see your interest in Air India.
Go through the following article of mine and I assure you all your queries shall be automatically answered.
https://www.google.com/amp/s/www.shiksha.com/aviation/articles/amp/so-you-want-to-be-a-pilot-blogId-18537
Any further assistance if required is most welcome.

BBA in Aviation is a three year under graduate programme offered by REVA University.

The candidate who wishes to become Airport Manager has to apply for examinations conducted by Airport authority of India (AAI) for selection in managerial posts in the airports of India. Qualification required to become Manager in Airport is either Bachelor's degree in engineering / aviation management / business administration with at least 60% marks from a recognized university or Postgraduate degree in Mathematics, Physics or Computer Science with 60% marks from a recognized university. Aspirants having job experience of 2 years and above in airports get special considerations for selection in these posts.

The Airport authority of India conducts examinations to select candidates in different managerial positions in the airports of India. The qualification criterion for attending the examination is a graduation. The candidate should have done his Bachelor's degree in general business or business administration. In addition, for getting good opportunities in the field, he should acquire a Master's degree in engineering, business administration or aviation management. Also, it should be from a recognized University.

There will be an aptitude test followed by an interview.

Yes, you can do it as MBA requires only Bachelor's degree in any stream. So it depends on the college that what's the criteria for admission like separate entrance exam, CAT or direct admission. All the best.

They do claim to help in placements but it all depends on your talent and aptitude. They can only provide you with opportunities.

No institute will give you a guarantee for placement. It depends on knowledge and how is your academic performance. These institutes do train you for different kinds of topics but most of it is irrelevant because when you join the airline, each of the airline have their own way of grooming or safety rules.

There is no age limit described to pursue this course. Aviation is a good field with great scope. Whether it is good for you or not, depends on how interested are you in pursuing this career.