So, many actors find it interesting and intriguing to work with him at least once in their career.
Mahesh has been one such hero, who is waiting for SSR for sometime and the director might adhere an old word both gave to producer KL Narayana.
For this film to happen, Mahesh needs to be commitment free by the time, SSR is ready for him. By the end of 2020 or early 2021, SS Rajamouli did indicate that he might have a script for Mahesh to complete the commitment and then move on to his dream project.
To make that happen, he has first complete #RRR which will release in 2020 with Jr. NTR and Ram Charan. By the time, #RRR is over and Mahesh - SSR film begins, Mahesh wants to be ready it seems.
So, he is planning three films before 2021 and then start SSR's film and wait till it is completed for another film, it seems.
Hence, he is doing Sukumar and Anil Ravipudi films simultaneously with one to be finished faster and another at the pace Sukumar is comfortable with for 2020.
After Sukumar's film is over he may do Trivikram's film or Sandeep Reddy Vanga's film before taking up SS Rajamouli's film, if the Baahubali director is ready and willing to make a film with him!