"I am yet to find the heroine. I am looking for the right face and would tell you shortly when we find her," said Farah on the sets of "DID Supermom", a TV dance show, here.
Farah, 48, said he chose Shah Rukh for the film because he fits into the character.
"It is an automatic choice - Shah Rukh. Not because he is my close buddy, but he fits into the role."
Farah, who also made her acting debut last year with "Shirin Farhad Ki Toh Nikal Padi", helmed many masala films like "Main Hoon Na", "Om Shanti Om" and "Tees Maar Khan".
"It has already become a chartbuster and is actually a tribute to the uninhibited singing style of Kishoreda (Kishore Kumar). The peppy nature of the track and choreography has the look and feel of Kishoreda's timeless funny songs," Farah said.