Rekha was initially a part of the film and had shot some portions for the role of Katrina Kaif's mother. However, things did not work out between director Abhishek Kapoor and Rekha.
"The experience of working with her was really lovely. I hardly shot with her for three days but you learn so much when you are in the presence of great actors. In two minutes, Rekhaji knew how the set has been running, she knew what the dynamics were," Aditya told PTI.
The 'Aashiqui 2' actor feels he has become a better actor by merely observing the 'Khoobsurat' actress.
"I learnt so much by observing her rehearsing and noticing how she approached the scene. She is also a very warm and supportive person, she made me feel good about what I was doing," he said.
"What I take away is I learnt about the craft of acting. I feel I am a better actor after working with her."
The 30-year-old actor said no other actress could have essayed the role of Begum Hazrat better than Tabu after Rekha moved out of the project.
The film, based on Charles Dickens' classic 'Great Expectation', is slated to release on February 12.