Passage: Rafeeq Mangalassery says his drama Kithaab was not directly based on the story of Vaangu, but was an independent adaptation inspired from Unni R.'s story Vaangu. However, Unni R. distanced himself from Mangalassery's drama, saying it was not in tune with his ideas and was lacking in spiritual value. Malayalam director V. K. Prakash also had an independent plan to adapt Unni R.'s story Vaangu for film.

Question: What did he plan to adapt the story into?
film