further mentioned that whilst the physical transformation was significantly easier, emotional transformation and "being able to understand the emotional level of the character was really daunting." However, he also revealed that as Dutt "represents an epitome of body building and if I had to play him on screen, body was essential". In order to build his body like Dutt's, Kapoor revealed that it required "sacrifice" and "discipline" as he "was having 8 meals a day, waking up at 3 in the morning to drink a protein shake." He also mentioned that he "wanted to take a step back and didn’t want to be around him too much because I didn’t want to be obsessed with him. I would be always looking at him, trying to see what he is doing, how he is scratching his beard, how he is talking…but before any poignant moment in the script, for instance, the jail sequence, the drug sequence, his mother’s death, or when the TADA verdict (Terrorist and Disruptive Activities (Prevention) Act came, I would always call him the night before the shoot. I just wanted to know what he was feeling, and very graciously, very honestly he would tell me and I would express that on screen. I wanted to represent him with respect" and a "true representation of what was going on in his head." Hairstylist Aalim Hakim revealed that it took "22 days to finalise Ranbir's different avatars" as it was a "challenge" to create the "receding hairline for Ranbir and give him a broad forehead". Costumer designer Ekha Lakani, stated that in regards to Kapoor's costume, she "discussed every look [with Kapoor]... spent hours trying to match every inch; how loose or how fitted it should be" by "matching different body types [as] Sanjay Dutt has had a different body type all throughout his life". Manisha Koirala who essays the character of Nargis in the film spoke about her transformation as well stating that "we did a couple of tests, from when she had short hair to when she had long hair." Koirala also revealed that she "did a lot of research on Nargisji" by studying "various photographs, books [and] documentary". She also admitted that it was "traumatic" reliving being a cancer patient as Koirala is an ovarian cancer survivor. She further mentioned that "it required a lot of inner strength... but was finally worth it as she tried