"AR (Rahman) is not doing the music for the film. He's a dear friend, but there are so many demands the world is making on his music. Every year one more city gets added that wants him," Tyrewala said.
Rahman had earlier composed music for Tyrewala's Jaane Tu Ya Jaane Na and Jhootha Hi Sahi.
"There are certain realities that come with working with him and those realities sometimes involve a lot of waiting and travelling. A film with a bigger budget can afford that, but a film that is a little tight on time, and clearly because it's all newcomers, so it's a little tight on money, can't.
"Unfortunately it's a luxury I don't have. To work with somebody whom I've done great work with, this time I don't have that option," he added.