Here is a multidimensional scaling plot of 9 different populations of Pakistan I've collected in the Dodecad Project. The "Pakistani" population from Xing et al. (2010) consists of Arain agriculturalists from the Punjab region.
It is fairly obvious that there are 5 clusters in these first two dimensions, and GALORE analysis confirms it:
The isolated Kalash form cluster #5, and the part Mongoloid Hazara #4. The Burusho are a genetic and linguistic isolate, falling in cluster #3. The other 2 clusters comprise of multiple populations: Cluster #1 the Brahui, Balochi, and Makrani and could very well be termed "Balochistan". Cluster #2 comprises of the Sindhi, Pathan, and Punjabi samples.
Here are two additional MDS plots. In the first one the Kalash have been removed; in the second one both the Kalash and the Hazara: