The Natyashastra, written by Bharata Muni, is an ancient Indian treatise on the performing arts, which includes a comprehensive discussion of literary theory.

Bharata Muni's theory of drama revolves around the concept of 'rasa', which refers to the aesthetic experience or emotional response evoked in the audience through the performance.

Anandavardhana, in his work 'Dhvanyaloka', introduced the concept of 'dhvani', which refers to the suggested or implied meaning in a literary text.

Abhinavagupta's theory of aesthetics emphasizes the emotional impact of a literary work on the reader or audience.

Dandin, in his work 'Kavyadarsha', extensively discusses 'alamkara' (figures of speech) and their role in enhancing the beauty and effectiveness of literary expression.

Mammata, in his work 'Kavyaprakasha', emphasizes the importance of structural unity and coherence in a literary work.

Keshavdas, in his work 'Rasikapriya', discusses the concept of 'riti' (style) and its significance in literary composition.

Jagannatha, in his work 'Rasagangadhara', argues for the universality of rasa, asserting that it is not limited to specific cultures or historical periods.

Kuntaka, in his work 'Vakroktijivita', explores the concept of 'vakrokti' (figurative expression) and its role in creating aesthetic pleasure in literary texts.

Rajashekhara, in his work 'Kavyamimamsa', emphasizes the importance of engaging the audience and creating a sense of involvement in dramatic performances.

Vishvanatha Kaviraja, in his work 'Sahityadarpana', discusses the concept of 'rasa-dhvani' (emotional suggestion) and its role in evoking aesthetic experience in literary texts.

Bhoja, in his work 'Sarasvatikanthabharana', focuses on the structural analysis of literary texts, examining their various elements and their contribution to the overall aesthetic experience.

Kshemendra, in his work 'Auchityavicharacharcha', explores the concept of 'aucitya' (propriety) and its importance in determining the appropriateness and effectiveness of literary expression.

Bhatti, in his work 'Kavyalankara', emphasizes the importance of ornamentation and embellishment in poetic diction, using various figures of speech and rhetorical devices to enhance the beauty and impact of literary expression.

Jagannatha, in his work 'Rasagangadhara', discusses the concept of 'rasa-nirnaya' (determination of rasa) and provides guidelines for identifying and interpreting the dominant rasa in a literary text.