Aviation

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.

There are multiple aviation academies you could join if you fulfill all the criteria laid out by them.

It depends on the institutions' policy with regard to beard. Some airlines are okay if you keep it well groomed, but for most, it is a strict no.

There are multiple choices for you, ranging from short term courses to degree courses. Depending on what you want to do in the aviation industry this would change.

Credit Control Manager, Airport Manager, Test Manager, programme Manager, Assistant Airport Manager, Airport Operations Manager, etc. In areas such as Aviation Industry, Airline/Port, Airline Insurance, Airline Contracting, Recovery and Credit, Sales Operation, etc.
The average full time fee charged for the course in India ranges between INR 18,000 to 2.6 Lacs for each year, and the average annual salary offered to such professionals varies from INR 2 to 6 Lacs per annum, increasing with experience and expertise.

You haven't mentioned the name of any particular institute or establishment. However, there are various establishment that offers short-term courses about aviation specific jobs.