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.
Bhojpuri language
Bhojpuri is also spoken by the first generation immigrants who migrated from the UP region which now encompasses parts of Bihar and Uttar Pradesh in India to the newly created Pakistan. It is, however, slowly dying out in Pakistan as the next generation prefers to speak Urdu, Pakistan's national language and lingua franca.