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 predicaations,2 Prakrit text along with Sanskrit Caya,English translation and Commentary,3 Prakrit text along with Sanskrit Commentary of Amrtacandra,Index of Gathas.