The 29-year-old, who even took classes from the Hindi tutors to learn the language for the film, is finding it tough to learn it but is hopeful to live upto everyone's expectations.
"I don't think I actually got it yet. I tried my best, it was tough of course there are lot of sounds that are not there in Tamil so I found it tough and I am still finding it tough, " Dhanush said here Friday at the press conference of the film.
Directed by Aanand L. Rai "Raanjhanaa" is set to release June 21.
"Hopefully I will live up to Anand sir's expectation and offcourse of all yours (reporters) too, " he added.
The film is a beautiful romantic tale and features Bollywood actress Sonam Kapoor opposite Dhanush.
During the conference of the film, the actor looked all in his cheerful mood. On public demand he even showed his dance moves but feels he is a poor dancer.
"That's ridiculous. Whatever movements I learnt, it took me a lot of time to learn. I am a very poor dancer, " said the actor.
On being compared his dancing style to actor-director Prabhudeva, Dhanush said: "Comparing me with him (Prabhudeva) he could have got a heart attack by now somewhere. It's an insult to Prabhudeva, so please don't do it.
About his own dancing style, Dhanush said: "I can bring in a lot of energy when I dance but that doesn't make me a good dancer."