Re: Isn't the difference obvious...
From my experience, 8 times out of 10 I could tell the difference between two people who are from the countries.
That's because you are comparing Pakistanis to South Indians, South Indians have a distinct complexion and facial features but telling a person from northwestern India apart from **most **Pakistanis is impossible. I would greet a guy at school with a very warm "Assalaamu Alekum" and he'd even reply then one day I heard his name once and turned out he was Sikh.
The culture is pretty much the same in Pakistan as it is in India, even the originally non-Desi (Dardic and Iranic) people are being assimilated into Desi culture and are adopting Urdu, spicy foods, wear saaris and sherwanis at weddings and listen to bollywood tracks.
What makes us distinct from India is our religion.