The plot device, where Arup's character (played by Vir Das) shaves his head off after being rejected by the girl he loves, has been apparently borrowed from a real life experience of Aamir Khan, who is also the producer of this film, when he was in his late teens.
The film initially received extremely negative reviews from both audiences and critics due to the heavy language, sexual content, and drug use along with many other things that were perceived as "inappropriate". However, the film became successful and has become known as a cult film by many young adults and teenagers.
Aamir Khan: There are several mentions and posters for action-star Aamir in an Akshat Varma directed film-within-the-film (Return of Disco Fighter). Aamir Khan is the producer of Delhi Belly, and Akshat is the writer and associate-director. Aamir Khan has a cameo in a song from Disco Fighter at the end.