Mumbai, April 16 (IANS): Filmmaker Tigmanshu Dhulia, who has started working on the movie adaptation of writer Ashu Patel's book "Madam X" based on the underworld, says he decided to make this film because of its "interesting climax" and "unique story".

He says it is different from the regular underworld stories.

"What stuck me was the girl's struggle in this book. This girl is very modern. She was wooing three guys who were dons at a time and then eventually she vanished. I like the story because of its end," the filmmaker said here on Wednesday during the launch of the book "Madam X".

"Neither does she die nor has a change of heart, she just vanishes. Nobody knows where she is... Will she come back? So, the possibility of part two is also possible," he added.

The book "Madam X" is about a small town girl who joins the underworld when her lover leaves her.

Meanwhile, there have been reports that actress Huma Qureshi has been roped in to play the female gangster in the film.

On being asked about it, Dhulia said: "I won't say anything unless everything gets finalised. She is very much there in the film, but I have still not closed the options."

"Madam X" will go on the floors at the end of this year.