Pilot

do pcm in 11th class with minimum 60% and ypi should be physically fit for all tests and mescoal tests best of luck

You can do bsc aviation with flying training you will get a degree and licence too

After CPL you are eligible for First Officer in any airline. CPL is only meant for pilots,

Yes you can
At the time of medical you can apply for correction of eyesight but there is limit for that too if your eyes are very week you can not apply for pilot courses.

Yes You can
It Depends upon your Interest so chose the better one according to your interest.

It depends on the flying club and region.
In India the total course will cost you around 35 lacs which in include
200 hr flying
Ground classes
and other expenses
DGCA exam fee should be bear by student only

For being a pilot you need Min 50% in 12th with Maths and Physics. After that you can apply for commercial pilot licence from DGCA.
For Indian Air force you need min 70 % in 12th.

A commercial pilot license (CPL), is a qualification that permits the holder to act as a pilot of an aircraft and be paid for his/her work. The basic requirements to obtain the license and the privileges it confers are agreed internationally by International Civil Aviation Organization (ICAO).