The shoot for "Kadathu" took Aparna to various picturesque locations across Kerala, from the rolling hills of Munnar to the bustling streets of Kochi. She was enchanted by the state's stunning landscapes, delicious cuisine, and warm hospitality.

As "Kadathu" neared completion, Aparna's father called her to his office to discuss the film's music. Over steaming cups of Kerala-style filter coffee, K.S. Soman revealed that he had decided to feature Aparna's voice in a pivotal song in the film.

One day, Aparna's father, K.S. Soman, announced that he was making a comeback to filmmaking with a new project. The film, titled "Kadathu," was a musical drama that explored the lives of a group of traditional Kerala musicians who struggled to preserve their art form in a rapidly changing world.