"To be fair to my other directors, I brought a certain amount of experience in this movie but this is a side that people have not seen before. There is a change in my attitude towards work. It's like I have tasted blood," he told PTI.
Sidharth credits director Shakun Batra for bringing the best out of him in the ensemble family drama, also starring Fawad Khan, Alia Bhatt, Ratna Pathak Shah, Rishi Kapoor and Rajat Kapoor.
"In the first few films, everything was very new and there was a lot more questioning in my performances. But this role was closest to what I am in real life. Shakun did not want me to portray something, he said I want you to draw from you for this part. This is by far the maximum fun I had on a film set."
It is an interesting journey for Sidharth, who stumbled into the film industry after dabbling with modeling and assistance direction.
"I became an actor due to various accidents. I'm happy that they happened because I was very lost as a child and did not know what I was good at. I used to feel that I'll not be able to do anything in life. But now I feel I'm in the correct profession where I need to know a little bit of everything."
Sidharth Malhotra, Kiara Advani to become parents soon