Siddharth having the time of his life with Dhawan

Southern actor Siddharth, who made his Bollywood debut with "Rang De Basanti", is working in David Dhawan's untitled project and says he is having a ball while shooting for the movie.

"Having the best time on David Dhawan's shoot. I feel 10 years younger just because of all the laughter..wonderful gang. Great moments of fun," the 32-year-old posted on Twitter.

Siddharth's last Hindi movie was Chandan Arora's "Striker" in the year 2010.