A single Kutiyattam act can run for days, and a full play for forty
Background
Kutiyattam is the Sanskrit theatre practised in Kerala and one of India's oldest living theatrical traditions. UNESCO places its origin more than 2,000 years ago and describes it as a synthesis of Sanskrit classicism with the local traditions of Kerala. Its codified language rests on netra abhinaya, the expression of the eyes, and hasta abhinaya, the language of gestures. Performers train for ten to fifteen years; a single act may take days and a complete performance may last up to 40 days. It is staged in temple theatres called Kuttampalams, with an oil lamp placed on stage to signify a divine presence. UNESCO proclaimed it in 2001 and inscribed it in 2008 on the Representative List of the Intangible Cultural Heritage of Humanity.
In plain words
Kuttampalam temple theatre — The roofed theatre inside a Kerala temple where Kutiyattam is staged.
Netra abhinaya eye expression — Acting done with the movement and expression of the eyes.