Contents: General editorial,Preface,A biographical note on Prof. A. Chakravarti,Introduction-(i) The histroical introduction,(ii) A philosophical introduction,(iii) Jaina logic,(iv)Nayas,(v) Sapta-bhangi or seven modes of predications,Prakrit text along with Sanskrit caya,English translation and commentary,Prakrit text along with Sanskrit commentary of Amrtacandra,Index of Gathas.