The Natyashastra, an ancient text on Indian theatre,
presents two fundamental concepts of drama, namely Pravritti and Vritti.
They together create the framework of dramatic expression. These concepts
define regional variations in performance as well as the stylistic approaches
used to convey emotion, behavior, and cultural nuance on stage.

Pravritti serves as a crucial element in shaping the portrayal of characters and settings in Indian drama. It emphasizes the incorporation of local customs, language, and attire specific to different regions, thereby grounding performances in recognizable cultural contexts. Vritti, on the other hand, pertains to the mode of expression and the overall style of performance through which emotions and actions are communicated. When combined, Pravritti and Vritti contribute to the authenticity of theatrical representation. By reflecting familiar cultural traits, they help create a stronger connection between the performance and its audience. The primary objective of Pravritti is to enhance realism (lokavrtta), ensuring that characters appear more believable and relatable within the dramatic narrative.
Pravritti divides Indian theatre into four broad zones accordingly, to facilitate the understanding of them. The four Pravritti are dakshinatya i.e. southern, avanti i.e. western, audra magadhi i.e. eastern, and pancala madhyama i.e. north-western and northern. In each, behaviour varies due to predominance of different vrittis, and requires careful study by the playwright and actor so that description and performance achieve the accurate representation.
