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).
History of Haryana
Hindi language movement of Punjab in the Hindi-speaking areas of Punjab started on 30 April 1957 and lasted till 27 December 1957, which paved the way for the demand for the formation of Haryana as a separate state for the Hindi speaking people of the united Punjab province. At the same time Punjab also had Punjabi suba & Punjabi language movement, under which Punjabi and gurmukhi were made official state language and script respectively, which was also made mandatory in schools of the whole of post-independence united Punjab. People of Hindi speaking areas of Punjab resisted this imposition. Punjab government retaliated by mass arrests and imprisonments, some of arrested activists were tortured in the prison. Sumer Singh of Naya Bans in Rohtak district gave his life for this cause during this movement.