'Bull" is set in the 1980s inspired by events from the life of Brigadier Bulsara.
Rajkummar Rao is currently awaiting the release of comedy-drama "Hum Do Hamare Do", co-starring Kriti Sanon, Paresh Rawal and Ratna Pathak Shah.
Produced by Bhushan Kumar and Shaaliesh R Singh, 'The Lady Killer' is billed as the story of a small town "playboy" who falls in love with a "self-destructive beauty" and their whirlwind romance.
'Action Hero' will feature an artist's journey, both, in front and behind the lens.
'Spirit' will not only be one of our biggest projects but it will also be a very special one as it's Prabhas' silver jubilee film as well," producer Bhushan Kumar added.
Based on true events, this yet-to-be-titled thriller will see Aditya in a double role for the very first time, portraying two completely different avatars.
'As per the complaint, Bhushan Kumar allegedly raped the woman on the pretext of providing a job to her in some projects of his own company,' the official said.