Sadhna is a 1958 Black-and-white Social guidance Hindi film produced and directed by B. R. Chopra. The film stars Vyjayanthimala and Sunil Dutt in the lead with Leela Chitnis, Radhakrishan, Manmohan Krishna, Uma Dutt, Ravikant forms an ensemble cast. The story, screenplay and dialogue was penned by Mukhram Sharma. The film revolves around Rajini , a prostitute's love affair with a professor . Wikipedia