Analysis of information sources in references of the Wikipedia article "Torwali language" in English language version.
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: CS1 maint: location missing publisher (link) The Pathans call them, and all other Muhammadans of Indian descent in the Hindu Kush valleys, Kohistanis.... It might be going too far to say that Torwali is the direct lineal descendant of the Niya Prakrit, but there is no doubt that out of all the modern languages it shows the closest resemblance to it. A glance at the map in the Linguistic Survey of India shows that the area at present covered by "Kohistani" is the nearest to that area round Peshawar, where, as stated above, there is most reason to believe was the original home of the Niya Prakrit. That conclusion, which was reached for other reasons, is thus confirmed by the distribution of the modern dialects.
... It might be going too far to say that Torwali is the direct lineal descendant of the Niya Prakrit, but there is no doubt that out of all the modern languages it shows the closest resemblance to it. A glance at the map in the Linguistic Survey of India shows that the area at present covered by "Kohistani" is the nearest to that area round Peshawar, where, as stated above, there is most reason to believe was the original home of the Niya Prakrit. That conclusion, which was reached for other reasons, is thus confirmed by the distribution of the modern dialects.