Pakistan and ancient Persian empires

• Shahmukhi is the Punjabi script for writing, and it's based on the Nastaliq style of the Persian script. Pashto is written in an Perso-Arabic script (though it contains some unique characters).  
• Punjabi (and Urdu) contains more loanwords from Persian than Pashto

QUOTE:  Language/linguistics:

About 99% of languages spoken in Pakistan are Indo-Iranian (sub-branches: 75% Indo-Aryan and 24% Iranian), a branch of Indo-European family of languages. All languages of Pakistan are written in the Perso-Arabic script, with significant vocabulary derived from Arabic and Persian. Punjabi, Seraiki, Sindhi, Pashto, Urdu, Balochi, Kashmiri, etc. are the languages spoken in Pakistan.

About 69% of languages spoken in India are Indo-Iranian (sub-branch: Indo-Aryan), 26% are Dravidian, and 5% are Sino-Tibetan and Austro-Asiatic, all unrelated/distinct family of languages. Most languages in India are written in Brahmi- derived scripts such as Devangari, Gurmukhi, Tamil, etc. Hindi, Bengali, Gujarati, Marathi, Telugu, Tamil, Malayalam, Assamese, Punjabi, Naga, and many others are the mother-tongue languages spoken in each of India's states.

As you can see both countries have distinct linguistic identities. Even in the case of Punjabi, while it is the mother-tongue of a majority in Pakistan, it represents the mother-tongue of only 2% Indians. Besides, Pakistani Punjabi (Western Punjabi) is distinct in its vocabulary/dialect and writing script when compared to Indian Punjabi (Eastern Punjabi). Another thing to keep in mind is that Indian Punjabi is mostly spoken by Sikhs who consider themselves distinct from the rest of Indians and had been fighting for independence. In the case of Urdu/Hindi, while Hindi is the mother- tongue of a majority in India, Urdu is the mother-tongue of only 8% Pakistanis. Besides, they both are distinct languages, Urdu has a writing script and strong vocabulary derived from Arabic and Persian, whereas Hindi has strong vocabulary derived from Sanskrit and is written in Devangari script. Most Pakistanis can understand English and watch American/Brit movies but that does not make them  British/American, same is the case with Hindi.


Race/genetics:

About 70% of Pakistanis are Caucasoid by race, 20% Australoid- Negroid, and 10% Mongoloid in their overall genetic composition. Majority of Pakistanis are tall with fair skin complexion, similar to Middle Eastern and Mediterranean peoples. While the racial features of each ethnic group are not uniform, Pashtuns are the most Caucasoid, followed by Kashmiris, Baluchis, north Punjabis, and then Sindhis, Seraikis, Urdu-speakers, etc. The Australoid-Negroid and Mongoloid racial elements are quite infused within the dominant Caucasoid genes among Pakistanis, however there are some that have retained their distinct racial characteristics.

About 50% of Indians are Australoid-Negroid by race, 35% Caucasoid, and 15% Mongoloid in their overall genetic composition. Majority of Indians are darker in their skin complexion, with wider noses, shorter heights, etc. The Australoid-Dravidoid racial element dominates among the lower caste Indians, South Indians, Eastern and Central Indians, etc. The Caucasoid racial element dominates in Northwest Indians and higher caste Indians. The Mongoloid racial element dominates in Northeast Indians and border regions with China.

Obviously, both countries have distinct racial identities. A common international perception based on observance of physical features is that most Pakistanis are lighter skinned than most Indians. Most Pakistanis resemble the looks of peoples inhabiting on its western borders and beyond. Indeed, many Pakistanis also resemble many Northwest Indians or higher caste Indians, but those are a minority in India. Similarly, a few people of Pakistan resemble peoples of South India, lower caste Indians, Northeast India, etc. but they are a minority in Pakistan. And besides, let's say, if some Saudis look similar to the French that does not make them one people, same applies here between Indians and Pakistanis. UNQUOTE.