West Punjab
At Independence there was a Muslim majority in West Punjab with significant Hindu and Sikh minority. Nearly all of these minorities left West Punjab for India, to be replaced by large numbers of Muslims fleeing from the opposite direction. The official language of West Punjab was Urdu but most of the population spoke Punjabi using the Shahmukhi script. The linguist George Abraham Grierson in his multi volume Linguistic Survey of India (1904–1928) considered the various dialects up to then called "Western Punjabi", spoken in North, West, and South of Lahore in what is now Pakistani Punjab, as constituting instead a distinct language from Punjabi. (The local dialect of Lahore is the Majhi dialect of Punjabi, which has long been the basis of standard literary Punjabi.) Grierson proposed to name this putative language "Lahnda", and he dubbed as "Southern Lahnda" the coherent dialect cluster now known as Saraiki spoken in Multan Dera Ghazi Khan and Bahawalpur division and "North Lahnda" now known as Potwari spoken in Rawalpindi division and "Western Lahnda" now known as Hindko spoken in the regions bordering Khyber-Pakhtunkhwa.
Kashmiri diaspora
According to the 1921 Census the total Kashmiri population in Punjab was 169,761. However, the Census report stated that only 3% of Kashmiris settled in Punjab retained their Kashmiri language. The number of people speaking Kashmiri in 1901 was 8,523 but had decreased to 7,190 in 1911. By 1921 the number of people speaking Kashmiri in Punjab had fallen to 4,690. The 1921 Census report stated that this fact showed that the Kashmiris who had settled in Punjab had adopted the Punjabi language of their neighbours. In contrast, the 1881 Census of Punjab had shown that there were 49,534 speakers of the Kashmiri language in the Punjab. The 1881 Census had recorded the number of Kashmiris in the Punjab as 179,020 while the 1891 Census recorded the Kashmiri population as 225,307 but the number of Kashmiri speakers recorded in the 1891 Census was 28,415.