Punjab
The major language spoken in the Punjab is Punjabi. In the Indian Punjab this is written in the Gurmukhi script. Pakistan uses the Shahmukhi script, that is closer to Urdu script. Hindi, written in the Devanagri script, is used widely in the Indian states of Himanchal Pradesh and Haryana. Several dialects of Punjabi are spoken in the different regions. The Majhi dialect is considered to be textbook Punjabi and is shared by both countries.
Saraiki language
In 1919, Grierson maintained that the dialects of what is now the southwest of Punjab Province in Pakistan constitute a dialect cluster, which he designated "Southern Lahnda" within a putative "Lahnda language". Subsequent Indo-Aryanist linguists have confirmed the reality of this dialect cluster, even while rejecting the name "Southern Lahnda" along with the entity "Lahnda" itself. Grierson also maintained that "Lahnda" was his novel designation for various dialects up to then called "Western Punjabi", spoken north, west, and south of Lahore. The local dialect of Lahore is the Majhi dialect of Punjabi, which has long been the basis of standard literary Punjabi. However, outside of Indo-Aryanist circles, the concept of "Lahnda" is still found in compilations of the world's languages (e.g. Ethnologue).