In ancient Sanskrit drama..

Bharata Muni's Natya Shastra defined humour (hāsyam) as one of the eight nava rasas, or principle rasas (emotional responses), which can be inspired in the audience by bhavas, the imitations of emotions that the actors perform. Each rasa was associated with a specific bhavas portrayed on stage. In the case of humour, it was associated with mirth (hasya).