The character of Khair-un-Nissa is based on the William Darymple's novel-The White Mughals which is a true love story that took place in early nineteenth century Hyderabad between James Achilles Kirkpatrick and Khair-un-Nissa Begum.
Recently, William Dalrymple tweeted a picture of Aditi Rao Hydari with the cover of 'The White Mughals' reflecting the uncanny resemblance between the two. While there has been no official announcement about the same, the depth of how widespread this news has spread has been tremendous.
William also historically has always displayed his fondness for Aditi to play his leading lady on celluloid but there has been no official word of the same from the makers.
With her royal bloodline and queen like beauty, who better could fit this role but Aditi! Incidentally, the actress is also playing a princess in her upcoming film Khoobsurat. Call this fate or magic, we're hoping to see the royal look of Aditi Rao Hydari on screen!