Goths (villages) and farms existed where Bahria Town encroached; ones that survived visible at the boundaries. This area is located within the Malir River watershed and hosts seasonal streams. See waterbeds and how farmland developed along them in these satellite images.
Linked to maps of encroachment by Bahria Town here:
Recognize that these goths existed. Land mafias exist. Mapping prevented 'cuz once it's mapped it's difficult to argue against. Familiarize yourself with the murder of Parween Rahman; "the process of regularisation of goths halted after her death" (dawn.com/news/1319812)
Keep every stakeholder of this land grab in mind: the ones that stole it, the ones that allowed this, the ones who bought here. dawn.com/news/1596091
In this thread I compare Bahria Town (Karachi) to other cities, local and international, to relay the spatial scale of 'legalized' fraud involved. Try to also grasp that all of the areas in these cities fall under one developer.
Image: Bahria Town Karachi overlay on Lahore
Image: Bahria Town Karachi overlay on Islamabad and Rawalpindi