Sanju coordinated by Rajkumar Hirani and composed by Abhijat Joshi arose to be quite possibly the best movies in Hindi film. The holding story is a biopic of productive entertainer Sanjay Dutt, who got a totally different rent of a profession with Rajkumar's 'Munna Bhai M.B.B.S'. Sanjay and Rajkumar later teamed up on 'Lage Rahe Munna Bhai' and the entertainer even played a heartwrenching appearance in Aamir Khan-drove 'PK'. By Rajkumar Hirani's own confirmation, he was captivated by the diverse existence of Sanjay Dutt which went past the domains of film and incorporated his own life, family, governmental issues, and legal disputes. 

Ranbir Kapoor showed up in the absolute last scene of 'PK' as an outsider from a similar planet as Aamir, subsequently started the cooperation between the entertainer and chief. Ranbir Kapoor referenced that he was not completely put resources into the possibility of the Sanjay Dutt biopic till he read the content which deeply inspired him. Ranbir needed to play Sanjay in numerous periods of his life, which implies an entire distinctive mentality and character attributes relying upon the circumstance. It additionally implies that Ranbir needed to actually change himself a few times in the film. For the majority of his vocation, Ranbir had a lean physical make-up yet he built up for 'Sanju'.During the creation of the film, Ranbir uncovered that to build up for the part, he was eating eight dinners per day and would regularly get up at 3 AM for his protein shakes. He said, "Sanjay Dutt addresses the exemplification of weight training and I was unable to mess that up". Ranbir gathered a more strong look than any of his past films and the endeavors were valued on-screen. Sanju co-featuring Anushka Sharma, Sonam Kapoor, Jim Sarbh, Vicky Kaushal, and Paresh Rawal among others ended up being a blockbuster.