CW-1 - Widows/Wards of Defence Personnel killed in action
CW-2 - Wards of serving personnel and ex-servicemen disabled in action
CW-3 - Widows/Wards of Defence Personnel who died in peacetime with death attributable to military service
CW-4 - Wards of Defence Personnel disabled in peacetime with disability attributable to military service
CW-5 - Wards of Ex-Servicemen and Serving Personnel including Police Personnel who are in receipt of Gallantry Awards
The CW seats also depend on your CAT percentile. Although the CW level is important, your academic profile and CAT percentile also matter. So you should target the highest possible percentile to improve your chances of admission.