Nastaleeq is a beautiful script in which Urdu is written, which was designed in Iran in the fourteenth and fifteenth centuries. ‘Naskh’ is the script in which Arabic is usually written. And Taleeq is a Persian script. Both of them were merged to become Nastaleeq. It is interesting to note that in Urdu the word Nastaleeq is used for a cultured, well mannered and refined person.

Curious to know what’s ‘Ham-Zulf’? It’s a word used in blood relations for which the word "SaaRhu" is commonly used. Basically, the respective husbands of two sisters are ‘Ham-Zulf’ of/to one another.
A word on the same lines which is used to address a relative is ‘Khush-Daaman’, that is a mother-in-law, or Saas.
Similarly, for a husband, the word "KHasm" also comes into common parlance which is not considered a particularly polite expression, and is often pronounced as ‘KHasam’, and in Punjabi, ‘khasam’.
Interestingly, in Arabic, ‘KHasm’ means enemy, from which the word ‘KHusuumat’ (enmity) is derived, which is used in Urdu language and poetry as well. For the expression ‘Jaan Kaa Dushman’ (pain in the neck), Mushafi has used ‘KHasm-e-Jaan’ in the following couplet:
Huaa KHasm-e-Jaa.n Mushafi wo tuu teraa
Na insaa.n ko insaan se bair hove

The proverb ‘Haath Kangan ko Aarsi Kya’ is quite common, but do you know what an Aarsi is exactly? Well, it was a ring worn on the thumb by women of earlier times that had jewels surrounding a mirror in its center. Women used to keep a check on their makeup by looking into it. In Urdu poetry, Aarsi is a theme that’s been extensively explored:

Aaiina saamne na sahii aarsi to hai
Tum apne muskuraane kaa andaaz dekhnaa

Going back to the proverb ‘Haath Kangan ko Aarsi Kya’, it literally means that to check the Kangan (bangles) worn on the hand, there is no need to look into the mirror; for they are right in front of the eyes. Figuratively, the proverb is used to point out something so obvious that there is barely a need to put it out explicitly. Further, the proverb has also been extended into the following:

‘Haath Kangan ko Aarsi Kya, PaDhe likhe ko Farsi Kya’

Interestingly, there is also a ritual in marriages called "Arsi Mus’haf" in which the bride and groom are seated face to face with a dupatta is placed on their head and a mirror is placed in the middle. The two look at each other’s face, reciting a Surah of the Qur'an. Mus’haf refers to the Holy Qur'an itself.