Despite the pre-recordings, the audio used in the episode was taken from the actors actually singing on set.

The actors sang and acted at the same time as the orchestra played in the background, unseen by the camera.

The actors who portray Everclean actually sing their songs in the movie.

The microphone problem persists, so some actors are still singing without amplification.

So was born the idea that actors should not only sing but also play the instruments, dispensing with the need for an expensive orchestra.

This was a rare occasion where an actor sang for a singer.

Malayalam industry was not professional at early 1950s usually actors sing for themselves.

Like some of its predecessors, the film was largely improvised, and the actors sang their own parts.

There's nothing more wonderful than feeling like the actors are singing in your living room.

All the actors sang live on set, rather than lip synching.