The 28-year-old actor, who is sharing screen space with one of Bollywood's most iconic on-screen couples for the first time, says the chemistry between them looks real.
Great real-life friends Shah Rukh and Kajol are reuniting on screen after a gap of five years with director Rohit Shetty's romantic action comedy 'Dilwale'.
"They have this kind of chemistry or aura around them which you feel like two people are in love have or two people, who have been in love for so many years, have.
"They both are extremely unique and amazing in their own way. They just bring that electricity of chemistry on the sets," Varun said on the sidelines of MAMI Mumbai Film Festival here.
Varun, son of filmmaker David Dhawan, said he learnt a lot from superstar Shah Rukh and Rohit.
"Shah Rukh and Rohit Shetty (Bollywood filmmaker) treated me like the baby and made me very comfortable. I learnt so many things especially the way he bleeds in the films.
"The fake blood that he uses for his scenes is different. He even gifted me a bottle and taught me how to use it to make it look real," Varun said.
'Dilwale' will be pitted against Sanjay Leela Bhansali's "Bajirao Mastani" at the box-office as both release the same day and Varun feels, as a viewer, the clash is "exciting."
"Two big films release on same day is very exciting because I have an option which film to watch. But having said that we have worked really hard on 'Dilwale', we haven't left any stone unturned," the actor said.
The "Main Tera Hero" star is not worried about the box-office fate of 'Dilwale' as SRK is there in the film.
"Box-office wise I feel both will be affected little bit. But I think as our film's name is 'Dilwale' so we will try to make a place in people's heart. I am actually not worried about 'Dilwale' because Shah Rukh Khan is there in the film," he said.
Varun added Rohit has worked "day and night" for 'Dilwale'.
"Rohit Shetty has worked day and night to make sure to get out the best thing possible. It's a very big film, you can expect everything from this film," he said.
"If I know that the producer doesn't have a budget and if I know that I love the script, I work around things. There is no point making a film with a huge budget if it is not going to make money for the producer," he added.
'Dilwale' will hit the screens on December 18.
