Hello aspirant

Yes you can apply for x and y groups but At the time of giving the exam you should have the 12 marksheet and passing certificate.

Indian Air Force (IAF) has started the online application process for recruitment to the post of Airmen in Group ‘X’ and Group ‘Y’ Trades  (STAR 01/2022) i.e. on 22 Jan 2021.

You can apply  through online mode on airmenselection.cdac.in or www.careerindianairforce.cdac.in.

The last date for IAF Airmen Registration is 07 February 2021.

Hope this helps. All the best .