Punjabi language
In India, Punjabi is one of the 22 scheduled languages of India. It is the first official language of the Indian State of Punjab. Punjabi also has second language official status in Delhi along with Urdu, and in Haryana. 
In Pakistan, no regional ethnic language has been granted official status at the national level, and as such Punjabi is not an official language at the national level, even though it is the most spoken language in Pakistan after Urdu, the national language of Pakistan. It is, however, the official provincial language of Punjab, Pakistan, the second largest and the most populous province of Pakistan as well as in Islamabad Capital Territory. The only two official national languages in Pakistan are Urdu and English, which are considered the lingua francas of Pakistan.The Majhi (ماجھی ਮਾਝੀ) dialect spoken around Amritsar and Lahore is Punjabi's prestige dialect. Majhi is spoken in the heart of Punjab in the region of Majha, which spans Lahore, Amritsar, Gurdaspur, Kasur, Tarn Taran, Faisalabad, Nankana Sahib, Pathankot, Okara, Pakpattan, Sahiwal, Narowal, Sheikhupura, Sialkot, Chiniot, Gujranwala and Gujrat and in Mandi Bahauddin(97’/.) districts.
Demographics of Pakistan
Around 80% of Pakistan's population speak one or more of the various Indo-Aryan languages. Usually concentrated in the heavily populated areas east of the Indus river, the Indo-Aryan languages and their cultures form the predominant cultural group in the country. They derive their roots from the Sanskrit language of Aryan invadors and are later heavily influenced by the languages of the later Muslim arrivals (i.e., Turkish, Persian, and Arabic), and are all written in a variant of either the Arabic or Nastaliq script. Urdu, the country's national language, is an Indo-Aryan tongue. Punjabi, Hindko and Seraiki, all mutually intelligible, are classified by linguists as dialects of an Indo-Aryan speech called Lahnda, also spelled as Lehnda. These are also, to a lesser extent, mutually intelligible with Urdu. Added together, speakers of these mutually-intelligible languages make up nearly two-thirds of Pakistan's population. Sindhi is the common language of the people of Sindh in southern Pakistan and has a rich literary history of its own, traced back to the era of the early Arab arrivals. The Dardic languages of Gilgit–Baltistan, Azad Kashmir and the northwestern mountains are sometimes classified by many linguists as belonging to the Indo-Aryan family. Other Indo-Aryan languages include Gujarati, Kutchi, Memoni and others.