Aviation

The fees varies college to college. The cost to become a pilot in Delhi, is very high, minimum INR. Rs.12 Lacs.

https://www.shiksha.com/university/jain-university-bangalore-424Just follow the link for details.

Choose PCM stream in 10+2. There are different requirements of different colleges but the basic one is at least 60% marks but actually you must have 80% for getting admission in a good institution. I would suggest you IGA, Delhi which is one of the best in India. Duration of courses also vary from college to college.
All the best for your future.

Money aspect would come around 40-50 lakh. The cost could only go upwards of that sum.

UPES is the best option. BBA in aviation is awesome here and you will get a lot of opportunities here.

BBA in Aviation Operations would be better than BSc Aviation. A BBA course specialised in Aviation Management is an area of expertise where the student learns and executes the principles of management of operation in airports and airlines.

Some colleges might take you, but it would vary among the institutes. So better contact various institutes and see what their responses are.

It varies from institution to institution. The thing which you have to pay for is the different types of license. Today, it can cost you above 80 lakhs to get all the licenses and become a pilot.

I think you can directly apply for ground staff jobs, or if you want to get into a higher position, do some short-term courses.

No barriers, still you need to be fit and fine with normal height and clear vision.