Onir is a film director, editor, writer and producer, He is best known for his film My Brother…Nikhil, one of the first mainstream Hindi films to deal with AIDS and same-sex relationships.
He was born as Anirban Dhar in Thimphu, Bhutan. He was inclined towards cinema, since his childhood.
He worked as an assistant to Kalpana Lajmi on Daman: A Victim of Marital Violence (2001) and from there he was introduced to the making of full length feature film.
My Brother... Nikhil (2005) was his directorial debut. He has a younger brother Abhishek Dhar who is a research scientist at Raman Research Institute.