"It's not true. It is the story of a girl from Jharkhand who runs away from her village, reaches Mumbai, goes to Dubai and then returns to Mumbai again as a 'diva'. It has no connection to Helen at all," Kaustav told PTI.
"Cabaret" marks the directorial debut of Kaustav, who is a renowned ad-filmmaker. The film is produced by filmmaker-actress Pooja Bhatt and the director says he wrote the movie in two weeks after Bhatt suggested him the title.
"Pooja (Bhatt) was coaxing me to make a film for a long time and I decided to take the plunge. One day she just gave me the title 'Cabaret'. I wrote a story around it in two weeks and we were ready," he added.
The romantic-drama stars Richa Chadda in the lead role of a small town girl making it big in the glamour industry.
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Kaustav says the "Masaan" star is an accomplished actress and he was sure that she would do justice to the role. "She (Richa) is an accomplished actress. It is a very difficult role. It has highs and lows and is very challenging. She worked hard for it and I never had any doubts about her. She is excellent," he said.
The film chronicles the relationship between a rising diva and a fallen journalist, played by "Hunterrr" star Gulshan Devaiah. Kaustav modelled the character of Gulshan on his own life as he was "heavy drinker" himself.
"I used to be a heavy drinker and I had come to a dead end because of the habit. I was in utter despair. So the character of Gulshan is inspired from my own life. I have seen the highs and lows too," he added.
"Cabaret", slated to release on May 27, also stars cricketer Sreesanth in a grey role and the helmer says he will be the "surprise" package in the movie.
"Sreesanth is terrific. For a non-actor like him he has great screen presence. He was initially apprehensive but he did a wonderful job. He is going to be the surprise in the film," he added.