Trade analyst Taran Adarsh shared the picture on Twitter on January 2:
The 40-year-old actress was roped in to play the bitter and manipulative character from the book, replacing actress Rekha, who had started shooting for the movie.
The director had said earlier: "Tabu has given some incredible performances in Maqbool, The Namesake and Haider to name a few. She is an actress who has always accepted challenges and I am honoured to have her in my film."
Fitoor, a part of which has been filmed in Kashmir, will have Katrina play the role of Firdaus while Aditya Ray Kapur play Noor. It also stars Aditi Rao Hydari, Lara Dutta and Rahul Bhatt in key roles and is scheduled to hit screens on February 12, 2016.