"This is the first time I am going to a Kumbh mela. The only time I have heard of it is in the movies. I am really looking forward to it because it's the largest assembly of believers anywhere in the world and this is the first time a film promotion is happening there," she said.
The actress will be accompanied by her co-star Emraan Hashmi and the film's co-producer Ekta Kapoor on the three-day visit, starting Feb 8.
Directed by Kannan Iyer, "Ek Thi Daayan" also features Konkona Sen Sharma and Kalki Koechlin. It is slated for April 18 release.
She feels lucky to be born in a secular nation like India.
"I think it's fantastic and this can only happen in India. It's such a secular country where anybody could be walking down the road and you really can't tell what faith or what religion that person belongs to," the 26-year-old said.
"Honestly, we are blessed to be born and live in a country like India. We have a mutual respect for each other's beliefs all the time. I have grown up in a very secular way," she added.