What is unique about the film 'Adi Shankaracharya'?

Adi Shankaracharya is a 1983 Indian film in Sanskrit language directed by G. V. Iyer. The film depicts the life and times of 8^th century Hindu philosopher, Adi Shankaracharya, who consolidated the doctrine of Advaita Vedanta (Non - dualism) in Hindu philosophy. It was the first film in India to be made in Sanskrit.