Omi Vaidya has said he thinks his role in '3 Idiots', Chatur Ramalingam, was so impactful that people find it difficult to see him in other avatars. He added he wants to be challenged and do different roles. "Doing another role like Chatur wouldn't excite me. I don't have to chase money...So...I don't mind waiting for good roles," Omi said.