Prassthanam follows the different trajectories of two brothers eyeing to succeed their politician father. Ali Fazal understood that the complex relationship between the siblings as well as the duo's strained relationship with the patriarch — portrayed by Sanjay Dutt — were integral to the story of the Deva Katta-directed venture. To grasp the dynamics of a political family better, the actor read up extensively on the lives of the Kennedy brothers before reporting to the set of Prassthanam.

John F Kennedy; Robert Kennedy. Pic/AFP photo/Handout/JFK Library