The promos of upcoming film Raavan have generated a lot of interest in the film. The Mani Ratnam directed film is a loose adaptation of acclaimed Indian epic Ramayana, with a twist. It has Abhishek and Aishwarya Bachchan and South star Vikram in lead roles. Interestingly, Abhishek will reprise the character of Raavan while Ash plays Sita. He has recently spoken about how tough and challenging the role was for him.