Punjabis
The main language of the Punjabi people is Punjabi and its associated dialects, which differ depending on the region of Punjab the speaker is from; there are notable differences in the Lahnda languages, spoken in the Pakistani Punjab. In the Pakistani Punjab, the vast majority still speak Punjabi, even though the language has no governmental support. In the Indian Punjab, most people speak Punjabi. English is sometimes used, and older people who lived in the undivided Punjab may be able to speak and write in Urdu. The Punjabi languages have always absorbed numerous loanwords from surrounding areas and provinces (and from English).
East Pakistan Renaissance Society
The Muslim League and most other advocates of Pakistan had demanded a single state of Pakistan consisting of the British Indian provinces of Punjab, Khyber Pakhtunkhwa (then Northwest Frontier Province), Sindh, Balochistan and Bengal, and sought the Urdu language to be the only official language and "lingua franca" of Muslims. However, the East Pakistan Renaissance Society not only argued that Muslims were a separate nation from Hindus, it also advocated that the Bengali Muslims were distinct from the Muslims of other parts of India, on an ethnic, cultural and geographical basis. Unlike religion, the society argued that ethnicity and cultural differences cannot cross geographic boundaries. The society and its supporters in the Bengal Muslim League asserted that Bengali Muslims should constitute an independent state, as an "Eastern Pakistan" rather than part of a single state of Pakistan. The society asserted the importance of the Bengali culture and language, which many advocates of Pakistan criticised as being "Hinduised" and "Sanskritised."