Khattat/Kaatib koi Anaari Hai! (Writer is inexperienced)
Instead of Ruswai, it should be Rasai as written earlier.
Ek Amr Zaroori Arz **Karna Tha! (Not **Arsh karna Tha)
Now, Masi is like blackish powder for teeth cleaning perhaps greyish color. I am told.
But "Masi Hui Thi" is not known. or "Gali Chard Chuki Thi " Sorry.
If 'Gali' is supposed to be as 'street' then that is a very bad sentence!
I did not see 'Bure Nawab Sahib'. It is written Bade nawab Sahib correctly at least twice with urdu letter Tuay. This Tuay is so small that it might look like a 'pesh'.