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.
Punjabi nationalism
Beside the fact that, in 1800 century, religious ratio of Punjabi people in Punjab was 48% Muslim Punjabis, 43% Hindu Punjabis, 8% Sikh Punjabis and 1% others, but due to attraction of the various tribes, castes and the inhabitants of the Punjab into a broader common "Punjabi" identity and uniting by natural affinity of "Punjabi Nationalism", Punjab was a secular regime, Punjabi was a secular nation and after throwing out the Muslim Mughal invaders of Punjab from Delhi, India and Muslim Afghan invaders of Punjab from Kabul, Afghanistan, a Sikh Punjabi, Maharaja Ranjit Singh was the ruler of Punjab, which provided the boost to the already initiated Punjabi nationalism.