The correct answer is option 2 - Mirat-ul-Urus. Mirat-ul-Urus is a famous novel written by Nazir Ahmad in 1869. The novel is set in the backdrop of the Awadh region during the nineteenth century and explores themes of social customs, traditions, and patriarchal society prevalent during that time. Nazir Ahmad is considered as one of the pioneers of Urdu literature and Mirat-ul-Urus is one of his most acclaimed works.
Option 1 - Twilight in Delhi is not the correct answer. Twilight in Delhi is a novel written by Ahmed Ali, not Nazir Ahmad.
Option 3 - Bahishti Zewar is not the correct answer. Bahishti Zewar is a famous Islamic guidebook written by Maulana Ashraf Ali Thanvi. It is not a novel.
Option 4 - City of Djinns is not the correct answer. City of Djinns is a non-fiction book written by William Dalrymple, a British historian and writer. It is a travelogue about Delhi and its history, not a novel written by Nazir Ahmad.
Therefore, the correct answer is option 2 - Mirat-ul-Urus.