What is "ramdhanu"

Ramdhanu is a 2014 Bengali family drama film, written and directed by Nandita Roy & Shiboprosad Mukherjee, the directors of Icche, Muktodhara, Accident and Alik Sukh, and produced by Windows and Jalan International Films. The film is presented by Atanu Raychaudhuri. The film was released on 6 June 2014. The film has done well at the box office. The film has been cinematographed by Sirsha Ray and edited by Moloy Laha.