Nasreen was in Alicante during both wars in 2007. During the Mortal War in September, she was seen conferring with Luke Garroway to determine what to do about Valentine Morgenstern. In December, Nasreen was among those who were able to evacuate to Idris after Sebastian Morgenstern's attacks on other Institutes. She attended the Council meetings discussing the war against Sebastian and his Endarkened.
Nasreen is said to have a stern face and is often seen wearing a sari, decorated with patterns of bright silver, elaborate runes.
- In City of Heavenly Fire, Nasreen's last name was spelled Choudhury.