Hello Aspirant,

Technically, diploma holders are not eligible to apply for AFCAT. The minimum educational requirement is a graduation degree of minimum three years from a recognized university. If u do Btech after diploma then you are eligible only for ground duty branch not for flying and technical branch.

For more details on this, click on the link below:

https://afcat.cdac.in/AFCAT/assets/images/news/AFCAT_01_2022/AFCAT%20Notification.pdf