Nayanthara, who is playing the role of Goddess Sita Devi in the Balakrishna starrer Ramarajyam, is on 'vritham' while shooting for the film. 'She is fasting during the days of shooting,' sources say.

The film is almost ready for release and the actress is thrilled at playing such an once-in-a-lifetime role. "It is a great opportunity and I am happy to do the character," says a happy Nayan.

Meanwhile, the buzz is that the actress would marry her sweetheart Prabhudeva, the popular choreographer-director-actor, after the release of the film. However, she is not ready to comment about it.