Hello  Aspirant,  there are any one of 4 priority of CAP Quota. 

1. Children from the Armed Forces, BSF or from CRPF Personnel were killed in action. 

2. Children of the Armet forces, BSF and from CRPF personnel disabled in any action and invalidated out from the services. 

3. Children of the Armed forces, BSF and from CRPF personel who are in receipt of Gallantry Awards.

4. Children of other Ex service men, BSF, CRPF personel.

I hope this will help you.