Ravi Babu put to himself an intriguing question. "We always read that evil spirits petrify humans during the nights. What do they do during the day time?" This led him to concoct scenes that have not been usually seen in the spooky films down the ages.

In Avunu, there are no fear-inducing camera angles, etc. "When we realize that someone is there with us, but that entity is not visible, we invariably feel shivers down the spine. My heroine is terrified in broad day light by this morbid fear. There is a villain who is never present to the naked eyes. How the heroine escapes from his evil clutches forms the crux of the story," he details.

Theme wise, Avunu has close resemblance with Bhumika's Anasuya.

Set to release by the end of this month, Avunu was surreptitiously made away from the media attention.