Every single Muslim in the subcontinent believes s/he is of Arab descent. If not direct Arab descent, then the illustrious ancestor had come from either Iran or Bukhara. Interestingly, the ancestor is always a great general or a saint.
Arab origin is the favourite fiction of all subcontinental Muslims. Most claim their ancestor arrived in Sindh with the army under
Mohammad bin Qasim (MbQ). But, I have heard of lineages reaching back to Old Testament prophets as well. An elderly Janjua (Rajput), from the Salt Range told me of a forefather named Ar, a son of the Prophet Isaac. Ar, he said, was the ancestor of the races that spoke the Aryan tongue!
Most of us are the progeny of converts. In their need to escape the discrimination of the so-called higher castes, our ancestors converted to a religion that in theory claimed to profess human equality regardless of colour or caste.
I use the words ‘in theory’ because even as the Arabs converted our ancestors to Islam, they discriminated against them for being “Hindis” as we learn this from Ibn Batuta’s own prejudices. And he is not alone.
Consequently, even after conversion, my ancestors, mpoor agriculturists, were looked down upon by the Arabs and even those who had converted earlier the same way as they were by the Brahmans when they professed their Vedic belief. Within a generation or two, those early converts began the great lie of Arab ancestry to be equal to other converts and the Arabs. This became universal with time.
Arab origins - The Express Tribune
I have just quoted a Pakistani writer here. I personally don't care for this "resemblance" so no point in laboring over it. If you are right, good for both of us. I just hope no one in the world confuses between the two as well and Pakistanis stop pretending to be Indians in bad times. That is a clear fraud and stealing of identity and should carry the punishment due to thieves.
Pakistanis pose as Indians after NY bomb scare - The Express Tribune
It shouldn't even be possible as per your claims, isn't it?