"She is a sweetheart. She made sure I did not feel discomfort. She was quite patient when I was getting my Hindi wrong. She helped me a lot. It is easy to laugh, as I would have lost my confidence," Dhanush told reporters here at the promotional event of 'Raanjhnaa'.
In the film, the 29-year-old actor is seen having a tough time impressing Sonam, but in real life he says it is quite easy to please her.
Currently, Dhanush is dubbing for 'Raanjhnaa' directed by Anand L Rai.
"It is weird to hear myself speak in another language. Sometimes I don't understand what I am saying. I am looking forward to see the film on big screen," he said.
The film's music has been composed by Oscar winner A R Rahman. "We both are excited about Rahman's music. We are happy with the response. He has created his magic again," Dhanush said.