Rebirth concept for Rajamouli's movie!?

A lot has been written about Rajamouli’s next movie starring NTR and Ram Charan. It was speculated that the movie is based on boxing but Ram Charan vehemently denied this in an interview.
 
Our sources have informed us that the film has rebirth concept. Rebirth is Rajamouli’s favourite theme (Magadheera, Eega, etc) and he is said to be taking up again. It is not clear what roles would NTR and Charan portray but the rebirth angle is the key element to the story, say sources.
 
The film requires huge graphics and sets. Earlier, Rajamouli planned to make the movie without visual effects but now the plan has been changed. The drama will commence its regular shoot in September.