Pāṇini was an ancient Indian grammarian known for his work on the Sanskrit language. His most famous text, the Ashtadhyayi, is a comprehensive grammar that outlines the rules of Sanskrit syntax and morphology. This work consists of eight chapters and employs a unique system of rules and meta-rules, making it a foundational text in the study of linguistics. In addition to the Ashtadhyayi, Pāṇini's contributions include various other texts and commentaries that further explore linguistic principles. His analytical approach has influenced not only the study of Sanskrit but also modern linguistics, showcasing the sophistication of ancient Indian scholarship.