your map is only a political map of new province south punjab including districts of kyber pakhtunkhah on administrative basis not on language basis which includes saraiki districts di khan tank bhakker layyah dg khan rajanpur muzzafargarh multan lodhraan bahalwalpur and rahimyar khan and punjabi majority districts toba tek singh chaniot jhang khanewal vehari bahawalnagar khaushab sargodha mianwali sahiwal pakpattan okara as per census of pakistan u can check them in district profile books percentages of languages as choosen by the people of those district as their mother tongue thanks