In a sort of revelation, a report has recently surfaced claiming that rajamouli had contacted none other than aamir khan to take on the role of the major antagonist in his forthcoming film, RRR. In this sense, it's unclear whether Aamir would accept to play the antagonist, but Rajamouli's pairing of Mahesh and Aamir is intriguing. rajamouli is a strict taskmaster and both are skilled performers, so their combined talents will be the dynamite that explodes louder than anybody could have predicted.
For the time being, let's consider this rumour to be just that—a rumour. rajamouli and his father V vijayendra prasad are still writing the script for the forest adventure, and Mahesh must wrap up Trivikram's guntur Karam before he can focus on getting ready for Rajamouli's film both physically and mentally. Keep checking back for further developments.