'Paani' will be produced by Aditya Chopra and will star Sushant Singh Rajput in the lead role.
"'Paani' has been delayed for 10 years. I have no clue why the project is getting delayed. I have never made a film, a film happens. I believe every film has its own individuality," Kapur said.
The 69-year-old director, who has helmed films like 'Masoom', 'Mr India', 'Bandit Queen', 'Elizabeth', said certain films take long time to make and 'Paani' may be one such movie.
Oscar-winning composer Rahman said that he believes in destiny and will wait for things to take its own turn.
"Well, it has been a long process. I has taken 10 years. It has to come into place, each film has its own fate. Shekhar is a believer of destiny and so am I," he told PTI.