The film stars Deepika Padukone, Arjun Kapoor, Naseeruddin Shah, Dimple Kapadia and Pankaj Kapur.
Adajania enjoyed working with a bunch of talented performers in the film, which is set in a sleepy Goan village.
"Love makes normal people do nutty things. But what if they were already a little nutty to begin with? Deepika and Arjun Kapoor signed onto the film before 'Chennai Express' and 'Two States' had released and didn't waiver because they had the same conviction.
"I couldn't make the film without Naseer because his character was written for him. As for Dimple, if I make a film without her she will have my head on a platter," said the director, who has previously helmed 'Being Cyrus' and 'Cocktail'.
Adajania said shooting the film was as hilarious as the story.
"A great joy I experienced was being introduced to Pankaj Kapur. It was a fabulous experience directing him. Finding Fanny was a shooting experience that was almost as goofy and hilarious as the story itself," he said.