The 28-year-old "Badlapur" star, who is a self-confessed fan of all Marvel movies, said it was very challenging for him to do the voice-over for the superhero film, and hopes the audience will like his effort.
"Captain America is a matured and a balanced leader. This is something that I am not. So, that made it all the more challenging for me. 'Captain America: Civil War' is bigger better and the action is huge," Varun said in a statement.
The film is being distributed in India by Disney.
"Captain America: Civil War" releases in India in four languages - English, Hindi, Tamil and Telugu - on May 6.