Gaurinatha Sastri, in this book, deals with the idea of sphoṭa as one finds in the Grammarian Tradition in classical Indian philosophy. The book contains four chapters: 1. Nyāya and Mīmāṃsā objections to the idea of sphoṭa, 2. The views of Kumārila, Śabara and Jayanta on sphoṭa. 3. Classification of Sphoṭa and 4. Authority of Āgama on sphoṭa.