Acclaimed filmmaker Mani Ratnam is busy with the pre-production of his dream project Ponniyin Selvan. Sources say that Karthi, Jayam Ravi, and Vikram are finalized to play the three main characters in the film. Once the rest of the cast and budget get finalized, Mani Ratnam will be formally announcing the project
Meanwhile sources say that an official announcement on Ponniyin Selvan will be out in a few weeks. They say that Nayanthara has been approached to play the adventurous bold boat woman Poonguzhali who later becomes Chola Queen in the novel. Music is by A R Rahman, they add.