"Romeo Akbar Walter" is set against the backdrop of the India-Pakistan War of 1971. In the film, actor John Abraham plays the title role who works as an undercover agent for the Indian intelligence agency.
Asked what made her join the cast of "Romeo Akbar Walter", Mouni said: "I really liked the script of 'Romeo Akbar Walter'. I remember when the film's director Robbie Grewal was narrating the story to me... in the middle of the narration, I realised that I wanted to be a part of this film. It's a very interesting story. It's about a man who gives up everything for his country. He sacrifices his name, family and love."
"This film celebrates those nameless people who go unnoticed and nobody even gets to know the amount of courage and sacrifice they displayed for the love of country."
Talking about her character in the film, Mouni said: "I am playing the love interest of Romeo in the film. She is a simple girl who works in a bank."