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.
Punjab
The region was originally called Sapta Sindhu, the Vedic land of the seven rivers flowing into the ocean. The Sanskrit name for the region, as mentioned in the Ramayana and Mahabharata for example, was "Panchanada" which means "Land of the Five Rivers", and was translated to Persian as "Punjab" after the Muslim conquests. The later name of the region, "Punjab", is a compound of two Persian words, "Panj" (five) and "āb" (water), introduced to the region by the Turko-Persian conquerors of India, and more formally popularised during the Mughal Empire. Punjab thus means "The Land of Five Waters", referring to the rivers Jhelum, Chenab, Ravi, Sutlej, and Beas. All are tributaries of the Indus River, the Chenab being the largest.