Translated and Edited by Devadatta Joardar Panini's monumental grammar Astädhyayi, embodied in nearly 4000 cryptic statements called Sutras, remains incomprehensible without the aid of detailed explanations and commentaries. The Käsikävṛtti, a Sanskrit work ascribed to Jayaditya and Vamana of about the 7th century CE, stands out among the great mass of commentarial literature as the only exposition that covers all the sutra-sin their Pāṇinian sequence. It is marked by its lucid explanations, simplicity of style, abundance of illustrative examples, and a profound awareness of grammatical works that preceded it, like the Mahabhasya and Candra-Vyakaraṇa. The Käsikävṛtti has therefore served as the basic source on which any Astādhyāyi exposition in any language should rely, up to the present day. The present series, of which this is the first volume, is intended to offer the complete Käsika with an accurate English translation and explanation, sources and analysis of the examples, and its possible relation to predecessors in its field. It is hoped that this unabridged and annotated English version will not only bring the whole Käsikā within the reach of the modern reader, but will generally make Pāṇini's grammar an interesting journey as well. Publication Jadavpur University Press