Actor Aishwarya Rai says reuniting with her ‘guru’, Mani Ratnam, was a no-brainer for Ponniyin Selvan, which is based on Kalki Krishnamurthy’s novel of the same name.Aishwarya will apparently play a double role in the Tamil epic, which will mark her fourth film with Ratnam after Iruvar, Guru and Raavan (in Tamil and Hindi).Today at the trailer launch of Hindi version of Disney’s Maleficent: Mistress of Evil, in which the titular character is voiced by Aishwarya, the actor was asked to share some details about Ponniyin Selvan.While the actor maintained it was better to keep details under wraps, she did share her excitement about collaborating with the director, who also helmed her acting debut.“When you watch and listen to the character of Maleficent, even Angelina has played her in a slightly theatrical manner. There is a theatrical manner in which she says her lines, because of her physicality, the way she’s created the character, that makes her speak a certain way. First day we did it like a match, almost the way she had done it and then we revisited some scenes to tweak it and change it.“So the entire exercise was very interesting and new. It’s a classic story and has classic emotions which are addressed in the drama of it.