It's tough to say which heroine will finally take up particular film. Actually it's Malayalam actress Keerthi Suresh who is expected to stun filmmakers with her terrific acting in Mani Ratnam's upcoming bilingual that will have Karthi and Nani in the leads. Here's the change.Like the way Dulquer Salman was replaced by Nani couple of days back, now Keethi Suresh got replaced quite similarly. Reports have that red-hot Kingfisher model Sayami Kher who has debuted on silver screen with mega menalludu Sai Dharam Tej's "Rey" is the luck girl. She will be now joining the team of Karthi and Nani, and we have to see with whom she will be paired. They say, Nani and Nitya Menon are a pair, and Karthi-Sayami will be another pair.