His elder brother Madhumadhawa Aravinda is also a popular singer, actor as well as a politician.

[12] Dhananjaya's aunt Chandrika Siriwardena is also a popular songstress and playback singer.

[16] In 2004, he debuted as a mainstream actor in Me Paren Enna which was directed by Asoka Handagama and produced by YA TV.

[17] In 2008, he acted in Sri Lanka's first Digital movie named Hetawath Mata Adaraya Karanna.

The film was telecast on the Valentine's Day, February 14, 2008 through Citi Hitz Satellite movie channel of Dialog Television.