Today i have visited nts regional office Quetta,
I met 17 grade officer, he told me that SBP will work on qualified candidates first, and if they feel need for more candidates then they them self will call waiting candidates or if they require nts to call them, nts will upload a new list for selective waiting candidates (top few from the waiting list not all of them).
and when they do so, they will give sufficient time to apply.... he clearly said that it is useless for waiting candidates to apply at this stage.
so WAIT.........
sorry for this news but this is what he told me