For the Hindi version the characters based on Rama and Seetha will be played by real life couple Abhishek Bachchan and Aishwarya Rai. Vikram would play the character based on Ravana.
However, for the Tamil version Vikram would replace Abhishek Bachchan and would pair up with Aishwarya Rai. Prithiviraj would play the baddie in this version.
Playing two different characters at one go would be something of a 'terrific exercise' in acting and would probably do a world of good for Vikram who is already a National Award winning actor.