Salam.
I just found this thread. I speak both Persian and Urdu. I cannot comment on the title of the thread because this is for Pakistanis and for Pakistanis alone to decide.
There are three things though which I have noted reading which I like to address briefly.
- Many users seem to think of Persian as a difficult language compared to Urdu. This is not true. For a non-speaker, between Urdu and Persian, he'd learn Persian quicker than Urdu for Persian is easier and more flexible.
I'll pick out a simple example, it is "Dookhtar Khoob" (good girl) and "Pisr Khoob"(good boy) in Persian where as it is "Acha Larka" but "Achi Larki" for the same. Also, where as a car or "Gari" has a female tense, a "Tanga" or cart has a male tense. You can imagine the difficulty for a learner. Now add future and past tense to it. There are no male and female tenses in Persian at all. Plus, where one could say "gana gah raha hai" and "gah raha hai gana" in Urdu for "he is singing," there is only one way in Persian. Poetry is another thing entirely.
- Also, many seem to think that Urdu and Persian are entirely the same in vocabulary or 90%. Honestly, it could be more than that but the pronunciation, grammar and sentence structure is entirely different. Urdu shares much vocabulary and the majority of the roots are derived from Persian as well but I will illustrate a simple example, take the English word "Revolution." For Urdu speakers it is "inn-qe-labh" or Persian speakers it is "enn-ge-labh."
- If a Persian speaker witnessed a conversation of Urdu speakers and had no background Urdu knowledge, or vice versa, at most he'd be able to deduce the meaning or subject of the conversation or sentence by catching some common words after guessing that the other is pronouncing them that way.
This is true for written Persian and Urdu as well. An Urdu speaker can read Persian with absolute fluency (because both use identical Persian-Arabic script) but will understand only through key words. He will pronounce the text incorrectly 90% or more though as explained above.