Is South Asian unity between Pakistanis and Indians possible?

Exactly.

We can't mix with hindus as their culture and our culture and religion is opposite. Mixiing with them means make ourselves gunahgaar.

As punjabies almost all would love to mix with sikh other then sindhi, sirhadi, balochi, mahajir. I don't know why they don't understand that they have to give importance to Muslims then sikhs due to language. That is so stupid who does that.

As quran says musalman say achcha dost musalman kay siwa koi naheen ho sakta yani musalman bahtar hay kisi kafir say.

What I saw here ppl like to make friends to kafir aka angraiz instead of muslim most of the time.