Hello buddy at this you are not eligible for appear in AFCAT exams you must eligible for this exams the eligibility criteria as follows

Eligibility criteria
In this case, the candidate should have passed 10+2 with subjects Physics and Mathematics subjects.
Students who are studying in 12th standard may also appear for the exam, given that they satisfy the minimum age limit criteria.
Also, such candidates who are in studying in 12th and want to appear for the exam must also make sure that their schooling will be over by the time the course starts at NDA.

AGE LIMIT-
To join Indian Air Force as Flying Officer after 10+2 Science stream, a candidate has to be between 16½-19 years of age
GENDER-
male only
PHYSICAL STANDARDS
Weight and Height ratio
Good Physical and Mental health
Good hearing
Well developed chests (expansion should be at least 5cm after full inspiration)
Healthy Bones and Joints

Selection process:
Written Test
Medical Test
SSB Interview