He says Anamika has superseded the original.
"We've added a social element which was not part of the original. This has made the remake even more exciting and I feel it will be better than Kahaani," he added.
Directed by Sekhar Kammula, Anamika features Nayantara in the role originally played by Vidya Balan.
Also starring Pasupathy, Vaibhav Reddy and Harshvardhan Rane, the film is slated to release May 1 worldwide.