After the exit of Akshay Kumar from the Gulshan Kumar biopic, titled 'Mogul', Aamir Khan came on board as the film's co-producer and got writer-director Subhash Kapoor to re-work on the script. There was immense curiousity amongst viewers to know who would fill in Akshay's shoes to essay, music mogul Gulshan Kumar's biography. Akshay Kumar was supposed to essay the titular character of Gulshan Kumar in the biography.

According to a report in Dna, Aamir Khan has offered the film to Ranbir Kapoor. The actor has earlier played the character of a musician/rockstar in Imtiaz Ali's Rockstar. Bhushan Kumar, head honcho of music label T-series and son of the late music maestro Gulshan Kumar, and Aamir Khan feel that Ranbir Kapoor is the apt choice for Mogul.