As the title suggests, the thriller/horror film revolves around some kind of a phobia -- the fear of something.

Radhika has been meeting doctors and patients, apart from reading extensively about the subject to gather as much information as possible.

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She is in close contact with psychiatrists -- to understand the mental aspect -- and neurosurgeons -- for the biological aspect -- so that she understands better how a person reacts to a particular
phobia. The actress has also been meeting patients and observing them to understand their behavioural patterns.

This is giving her a better perspective of the film, thereby helping her to deliver a more nuanced performance.

Talking about it, Radhika said in a statement: "I'm in touch with doctors and they have shared valuable information with me about the subject. It has helped me get a deeper understanding of panic
attacks.

"Apart from reading up about it, the first hand information has been very vital to the preparation of my character."

The actress is currently shooting for "Phobia", post which she will start shooting for her film with Rajinikanth.