Required commercial pilot qualifications are as follows:
To pass class 12th with Physics & Maths, and have atleast 50 percent marks in them.
You must be well versed with English language.
However if you have passed class 12th already and didn't have Maths & Physics as subjects, don't worry you can still pursue them from an open school, pass them with 50 percent marks and be eligible to apply for a commerical pilot's license.
