"I can't cast myself, I'm not that stupid," he said at a song launch function here.
Karan and filmmaker S.S. Rajamouli launched a new song of their epic drama Baahubali on Thursday.
Asked about acting offers, the producer said: "Not even one person has offered me a role. I'm waiting eagerly for some offer, at least a poor offer which I can refuse.
"I tried my best but I think nobody wants to see me act on screen."
Though Anurag Kashyap's Bombay Velvet failed miserably at the box-office, Karan Johar was one of the few actors who was appreciated for his magnificent act.