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.
Demographics of Pakistan
Hindko, spoken by the Hindkowans in Pakistan, is similar to the northern dialects of Punjabi. It is spoken in areas of Khyber Pakhtunkhwa (including Hazara), Peshawar city, Punjab and Azad Kashmir, by an estimated 2 million people. It shows close affinity to Punjabi and the Lahnda sub-group of Indo-Aryan tongues and can be sub-divided into a northern and southern dialects.