The 30-year-old National Award-winning actor said the film's writer Mahesh Bhatt, who approached him during the making of "CityLights", had a big hand in convincing him to join the Mohit Suri-directed project.
"My character is not a violent guy, he represents a part of society, where men treat women as their property and want them to be submissive. Bhatt saab told me about this idea while I was doing 'CityLights'.
"Hamari Adhuri Kahani" also stars Emraan Hashmi and Vidya Balan and is a love story between their characters.
Rajkumar said his character may not have a hardcore romantic angle in the film but is instrumental in taking the love story forward.
The film may be based on the love story of Bhatt's parents, but Rajkumar said it is not a biopic and is built on certain incidents.
"Bhatt saab has shared some incidents and memories from his life and the film is not a biopic. The source of the story is their life but it is very different," he said.
