Nadi Theke Sagare (Bengali: নদী থেকে সাগরে) (transl. From river to ocean) is a 1978 Bengali feature film directed by Arabinda Mukhopadhyay. The film was written by Prasanta Chowdhury. The screenplay was written by Sunil Gangopadhyay and Arabinda Mukhopadhyay. It revolves around a prostitute who struggles to get her daughter married to a decent man. It stars Soumitra Chatterjee, Sandhya Roy, Debashree Roy, Mithun Chakraborty, Chhaya Devi, Rabi Ghosh and Anup Kumar. Debashree Roy was credited as Rumki Roy in the film. The music of the film was composed by Hemanta Mukherjee with lyrics penned by Pulak Bandyopadhyay and Arabinda Mukhopadhyay.This is the film where Debashree Roy, for the first time played a leading role. It was the first film where Mithun Chakraborty and Debasree Roy collaborated together. She played Champa, the unfathered daughter of Sohagi played by Sandhya Roy, and had to enact the adolescence as well as the adulthood of the character she was given. She drew critical favour for her gaze in the film. Soumitra Chatterjee and Ajitesh Banerjee won critical favour for their performance in the film. The film was a major success at box office.