Sooraj Barjatya's Maine Pyar Kiya had a pigeon song that became popular and 20 years later Rakeysh Omprakash Mehra has a dove song in his forthcoming film Delhi-6. He says it was not part of the original plan.

"The song was not really meant to be part of the narrative. I mean, who would think of putting in a song about a dove in a film like 'Delhi-6'? It just happened. When I came to the pre-climax portion of my script, I was stuck. I needed a continuity link taking the narrative to its finale," Mehra told IANS.
Mehra's much talked-about "Delhi-6" has a large cast including Amitabh Bachchan, Abhishek, Sonam Kapoor and Gulshan Grover as well as a dove named Masakali who serves as the romantic leitmotif in the plot.
So crucial was the dove to the film that a whole song was written and composed in its honour. The song "Masakali" is sung by Mohit Chauhan whose voice A.R. Rahman had used in "Rang De Basanti".
"When I narrated the scene to Rahman, he said, 'I can see a dove here'. I was taken aback. I had never mentioned Sonam's dove to Rahman. How did he know about it? That's how the song 'Masakali' was born," said Mehra.
{{/usCountry}}"When I narrated the scene to Rahman, he said, 'I can see a dove here'. I was taken aback. I had never mentioned Sonam's dove to Rahman. How did he know about it? That's how the song 'Masakali' was born," said Mehra.
{{/usCountry}}Mehra says the songs fit well in the plot of the movie.
"When Rahman and I did 'Rang De Basanti', we didn't think about anything except how well the songs and music fitted into the plot. The music of 'Delhi-6' is again designed only for the film. The dove song 'Masakali' makes sense only within the parameters of our plot."