Assuming you are science student

Eligibility criteria for joining Indian Air Force is minimum 10+2 or diploma.

If you want to join as a technician(Group X), you must have 50% aggregate and 50% in English. PCM are compulsory subjects for technical group.

For Non-technical group(Group Y), it must be of any stream with 50% aggregate and 50% in English.

Thank you

Good Luck