Emraan Hashmi plays a magician in the film. According to him, a daayan (witch) is beautiful and scary at the same time. She has lush tresses over an angelic face. Her feet face backwards, and hands are taller than her body. And, topping it all, all her witch power resides in her long plait.
So who is this daayan in the film? Kalki Koechlin. She makes her appearance only fleetingly in the trailer. But her blanched complexion, dilated eyes in those two sockets in her face do indeed send a shiver down your spine. The scares, otherwise, are evoked from the moments of anticipation, like Emraan Hashmi sensing a presence in his dim-lit room and gawking at the curtain undulating in the wind.
Ek Thi Daayan is directed by Kannan Iyer and produced by Ekta Kapoor and Vishal Bhardwaj. It is based on a short story written by Aparna Sen's ex-husband journalist Mukul Sharma, based on his experiences with occultism. Vishal Bhardwaj loved the story and asked Mukul Sharma to develop it into a full-fledged screenplay.