`When the film was happening, we knew it would be big. But we never knew it will have such a massive impact. It has turned out to be one of the top films in the country," Rana told IANS on the sidelines of the ongoing Lakme Fashion Week winter-festive 2015 here.
An international version of the film, which is 23 minutes shorter than the Indian theatrical version and edited by Vincent Tabaillon of "Incredible Hulk" fame, will be screened at BIFF.
"International release is coming up in a week's time,` he said.
Rana was the showstopper for designer Anushree Reddy along with actress Amy Jackson, who will be next seen in "Singh Is Bliing" alongside Akshay Kumar.
Asked about his forthcoming projects, Rana said he is working on an action-comedy film.
`I am doing my own production venture, which will be an action comedy. But we don't have a title yet,` he said.
`It's a trilingual film. It will release in Tamil, Telugu and Hindi. 'Baahubali' is the answer for multilinguals,` he added.
"Baahubali - The Beginning" is about two brothers at war for an ancient kingdom. Also starring Prabhas, Anushka Shetty and Tamannaah Bhatia in lead roles, it is one of the highly successful dubbed films.
The film saw simultaneous release on July 10 in Telugu, Tamil, Malayalam and Hindi. It has so far grossed collections in excess of Rs.600 crore in all four versions.