The science fiction epic was originally planned to release theatrically with a number of climatic scenes, Mid Day claims.
A source told the newspaper: "Shah Rukh initially toyed with the idea of releasing theatrical versions of the film with alternate endings. But he soon decided it wasn't worth the risk and settled on the DVD option."
The actor is reported to have considered a range of possible closing scenes, and could not make up his mind as to which one to finalise.
"SRK has kept the making of Ra.One extremely interactive. He's taken opinions from experts as well as the layman and even his kids Aaryan and Suhana... However, when it came to the climax he was unsure how to end the story. Hence, the option of multiple endings in the DVD," the source added.
The project, which also stars Kareena Kapoor and Arjun Rampal, is expected to release at the end of 2011.
