What is "abhinayam"

Abhinayam is a 1981 Indian Malayalam film, directed by Baby. The film stars T Jayasree, Vidhubala, Jayan and Vanchiyoor Radha in lead roles. The film had musical score by K. J. Yesudas and K. Raghavan. The film was produced by B. P. Moideen, whose life story was adapted into the film Ennu Ninte Moideen in 2015. During the filming of Abhinayam, Jayan and Moideen became great friends and Jayan showed interest to make Moideen's life story as a film. Jayan wanted to play the character of Moideen and Moideen happily agreed to that. However after a month, Jayan died in an accident while shooting for the film Kolilakkam.