Dhanush Biography. Dhanush, born on 28 July 1983 is an Indian film actor, producer, director, writer, lyricist, screenwriter and playback singer who predominantly works in Tamil cinema. His popular song "Why this Kolaveri Di" became the first Indian music video to cross 100 million views on YouTube. His Bollywood debut in Raanjhanaa receives lot of applause. Let's find out more in this video about his life and much more. Watch the video to know more.