Monty was by far the most challenging character says Sidharth Malhotra

The character needed him to have an extreme level of aggression, anger and frustration. Not only was that opposite from what the young Punjabi lad is like in reality, but things became challenging when he had to have a certain degree of resentment towards his onscreen family.

Being a family person, Sid found it difficult to exhibit hatred towards his onscreen father and brother. That was the toughest part of the job regards Sidharth stating that though it was challenging but it was a beautiful learning experience. The mental transition he went through during the filming has helped him further to understand the character of Monty which is played by him in the film.