Which are the courses in graduation to pursue to become a pilot and what is the duration of the course? I have done 12th with PCMB.

Graduation is not necessary to become a pilot, but if you pursue graduation it will be helpful for you in future. Graduation is for minimum 3 years and you have to pursue graduation in physics or mathematics. You can also directly apply for SPL (Student Pilot License), in which you have to join a t