Air Force Officer

1) You need to have Mathematics, Physics and English with minimum 50 percent overall marks, and 50 percent marks in English explicitly. So, with 58%, you are eligible, but again, if you score 50 percent marks in English.
2) You need to be born between 14th July 1998 and 26th June 2002 (both days inclusive). In case you clear all stages, then the upper age limit is 21 years, as on the date of enrollment. Wish you luck and go for the exams.

You can go after class 12th through NDA or Air force direct recruitment. Or, you can go after graduation through direct technical entrance exam. All the best.

There are basically 4 ways to become officer in IAF. NDA that's stand for National Defence Academy which is conducted by UPSC twice a year. This exam is conducted on class 12th level. AFCAT Exam which is conducted by IAF twice a year. This exam is conducted on graduation level. From this exam you can opt for flying, technical and ground duty. CDS exam which is conducted by UPSC twice a year conducted on gradation level. NCC exam which is for NCC Cadets having C certificate. Hope your doubts are solved.

Joining Air force as a doctor, also entitles you an officer rank. You may not be allowed as General duty officers, but will work as doctor for air force.

You just need to apply for NDA exam. If you clear written you have to clear SSB interview from air force selection board. If you are then medically fit, then you will get your joining letter for NDA.

It's a good choice only if you wanted to make your career in defense and willingly wanted to experience a faulty lifestyle. After class 12th the only option you have is to apply for NDA and if you get selected you would be made a pilot in IAF.
All the best.

These are again two different fields. You need to make sure, what stream you want to spend your whole life in, then decide your final destination. Both the streams have different entrance exams, like for Airforce you need to appear for NDA while for banking there are various exams specific for banking, which you can fill the form and appear for the exam.

After completing your class 12th, you should appear in the National Defence Academy examination conducted twice a year, by UPSC if you get selected you could opt for Air Force, but to remember an air force cadet in Indian Air force through NDA gets flying branch only.

You should simply get minimum 60% in your class 12th examination, and then you should apply for National Defense Academy examination, if you cleared the written examination, then you will be called for SSB interviews, if you get recommended over there as well, then you have the medicals, and if you clear your medical, then you get your joining for NDA as an air force cadet.

B.Com graduate come under non-technical branch of Indian Airforce, such as administration logistic and education now talking about the score it has same scope as like other technical branch offices, but the only difference is due to its less technical support the promotion statistics is a bit lower, then the technical branch officers.