Adipapam

Adipapam aka Aadhya Paapom First Sin is a 1988 Malayalam softcore biblical film directed by P. Chandrakumar and featuring Abhilasha in the lead role. The film is actually made as a family drama based on the biblical story of Adam and Eve. The lead characters appear completely nude in the film. The film, made at a budget of 750,000, grossed around million. The success of the film inspired a series of similar productions in the next few years. Director P. Chandrakumar himself went on to direct eight more porn films and Abhilasha became the most demanded actor in Bgrade movies of that time.

Source: Wikipedia