The final name, she said, would only be revealed once "we sign on the dotted line".
"I don't know where these reports come from. I think some journalist has a dream and next day it gets printed," Ekta said here Thursday on being asked if Nargis is a part of the film.
Talking about the "big wish list" for the movie, she added: "We have a couple of names, but like I said, we have just finished writing the film, and we have certain number of cast (members) to be discussed.
"The shooting will start from the next month and we are still in discussion with actors. I can't disclose anything till we sign on the dotted line."
It was reported that Nargis will be playing Azharuddin's second wife Sangeeta Bijlani in the film. Meanwhile, actress Prachi Desai has been signed to play the cricketer's first wife Naureen.
Further, Ekta said: "It took whole one year to write this film as the story is so huge and I think that much time will be taken into cast as well."
Directed by Tony D'Souza and produced by Balaji Motion Pictures and MSM Motion Pictures, "Azhar" the film is said to deal with Azharuddin's entire life.
The teaser of the film was launched here on Thursday in the presence of "Azhar", along with Mohammad Azharuddin and Emraan Hashmi, who plays Azhar in the film.