Chandashastra is an ancient Indian text attributed to the sage Bharata Muni, focusing on the art of drama and performance. It serves as a foundational work in the field of Natya Shastra, which encompasses various aspects of theatrical arts, including acting, music, and dance. The text outlines the principles of storytelling, character development, and the emotional expressions necessary for effective performance. The Chandashastra emphasizes the importance of rhythm and meter in dialogue and poetry, guiding performers in their delivery. It also discusses the significance of aesthetics and the role of the audience in experiencing the performance. Overall, it is a crucial resource for understanding traditional Indian theater.