The lead role of 'Ganga' was exclusively written for 'Madhuri Dixit'but madhuri had some issues with Subhash Ghai during filming of 'Khalnayak' so opted out of the movie.
Yeh Dil Deewana was shot by Shahrukh Khan's duplicate.Shahrukh Khan had to rush to Delhi to be with his pregnant wife Gauri.Subash Ghai called him early morning and took 2-3 close ups rest long distance shots were shot with his duplicate.
Subhash Ghai hated Shah Rukh before the making of Pardes Ghai had shaken hands with Shah Rukh in 1991 and told people that of Khan was a dog. If Shah Rukh ever became famous he would destroy everyone with his success and bad attitude. When Ghai met Khan again at the party of Kabhi Haan Kahbi Naa, he saw a more human side to Shah Rukh. Khan was taking care of Gauri and her parents. This would trigger of the idea of casting Shah Rukh in Trimurti.
Juhi Chawla was considered for the role of Ganga, but Subhash Ghai was so impressed with Mahima Chaudhry that he gave her the role.
When Subhash Ghai decided on putting Mahima Chaudhry in this movie, he changed her name from Ritu to Mahima cause the letter 'M" was lucky for a Subhash Ghai debut (Meenakshi Sheshadri, Manisha Koirala, and Madhuri Dixit).