She liked the fact that despite being a seductress, her character had a certain innocence and simplicity.
"It was a unique character of a seductress and yet so simple. There was nothing flashy about it. It was very simple and subtle. The experimentation with the look is also like that, the way she walks and sits... I am happy it has paid off," Radhika told PTI.
"The two foremost reasons for me to do 'Ahalya' were Sujoy, who is a fantastic story-teller and a great filmmaker and Soumitra da, with whom I had worked previously on a Bengali film. I couldn't believe I was getting to work with him again. I am a big fan of his work."
For Radhika, playing Ahalya was not difficult as Sujoy helped her to get the nuances right.
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"Working with Soumitra da and Tota (Roy Chowdhury) added to it. Soumitra da is so charming and effortless that when you are opposite him, you immediately get relaxed. It was wonderful," she said.
The movie, which hit the internet on Tuesday, is getting rave reviews for its modern take on the age old myth of Ahalya, the wife of the sage Gautama Maharishi, was seduced by Indra and cursed by her husband for infidelity.
Based on the life of Dashrath Manjhi, popularly known as the 'Mountain man', "Manjhi" is set for August 21 release, while "Kaun Kitne Paani Mei" wil hit theatres the following week.