@Clockwise: Our federation is already in jeopardy. If women quota is applied separately then Punjabi female candidates will swarm in.It is pertinent to note here that no female candidate has passed from Sindh(R),Balochistan and A.J.K.
Merit quota already favours Punjab.So the mechanism of 10 percent seats from the same provincial quota is a better bargain than having none at all.

@555: In a federation all provinces/regions must have representation. At the present moment the educational,economic and social conditions are not equal for all the provinces. So the quota system is a safeguard for having the representation in central services from all parts/regions of Pakistan.