Shah Rukh Khan has said that he hasn't seen the film yet as he doesnt want to watch his first and last films.
At one point Armaan Kohli was signed for Shahrukh Khan's role. But a major fight with the producer, Shabnam Kapoor, resulted in him being dropped from the film. Armaan had signed a two picture deal with Shabnam. One film was Deewana, the other was Insaaf Ki Devi (1992). Armaan Kohli's father, Raj Kumar Kohli, insisted that Shabnam retain Armaan in both films or else he would walk out of both. Shabnam then decided to drop Armaan from both films.
Sunny Deol was the first choice for Shah Rukh Khan's role. When Sunny Deol opted out, his father, Dharmendra recommended young newcomer Shah Rukh Khan to his cousin, Guddu Dhanoa.
Deewana's music album was the highest selling film soundtrack of 1992.
Rishi Kapoor fell in love with the song Aisi Deewangi ,when he first heard it. He kept insisting the song be picturised on him. He finally let go of it when Raj Kanwar reasoned that the lyrics would only suit Shah Rukh Khan's character. The tune of the song is based on a cult Kannada song from Bayalu Dari (1976-77).