Hello,

To be eligible for Pilot you have to complete your 10+2 level with Physics and math. As you have said that you have completed your 10+2 level from Bio you are not eligible for becoming a pilot. You can complete your 10+2 level from open school and then be eligible to become a pilot. Please click the below link for more information. Pilot training is a 16 months course which can extend to up to 36 months to clear all the exams.

https://www.careers360.com/courses/pilot-training-course