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.
Punjabi Language Movement
The Punjabi Language Movement (PLM) is a linguistic movement in Punjab, Pakistan aimed at reviving the Punjabi language, art, culture and literature in Pakistan. The Punjabi people constitute the largest ethnic group in Pakistan though Urdu is the national language and unlike Indian Punjab (where reading/writing Punjabi language is compulsory at every level from 2008 alongside a special Punjabi University at Patiala), Punjabi itself does not have an official status. 
The PLM's ideologies are based on Punjabi nationalism.