In 2015 the film ran into controversy even before it went on floors when Arjun Rampal went to have a secret meeting with Arun Gawli to prepare for his character when he was admitted in JJ Hospital in Mumbai.
Farhan Akthar's character is modeled on Dawood Ibrahim his character was kept under wraps until the film released.His character name is called Maqsood.
The film is titled Daddy as in real life Arun Gawli is addressed as Daddy by his well wishers.
Zindagi Meri Dance Dance from Dance Dance 1987 as been re created as the film is set in 80s.
To prepare for the role Arjun Rampal also visited Dagdi Chawl and interacted with people who have lived that life. where Arun Gawli spent whole of his life.