Punjab, Pakistan
The major and native language spoken in the Punjab is Punjabi (which is written in a Shahmukhi script in Pakistan) and Punjabis comprise the largest ethnic group in country. Punjabi is the provincial language of Punjab, but is not given any official recognition in the Constitution of Pakistan at the national level.
Saraiki language
Saraiki is primarily spoken in the south-western part of the province of Punjab. To the west, it is set off from the Pashto- and Balochi-speaking areas by the Suleiman Range, while to the south-east the Thar desert divides it from the Marwari language. Its other boundaries are less well-defined: Punjabi is spoken to the east; Sindhi is found to the south, after the border with Sindh province; to the north, the southern edge of the Salt Range is the rough divide with the northern varieties of Western Punjabi.