________________ INTRODUCTION 1. Critical Apparatus The present volume includes the following three works : (1) Nyaya-bindu by Acharya Dharmakirti, (2) Nyayabindutika by Acharya Dharmottara, and (3) Dharmottara-pradipa, a subcommentary by Pandita Durveka Misra. The first two have been published in many editions in India and elsewhere. The Dharmottara-pradipa is being published here for the first time. In preparing the present edition, the following manuscripts and published works have been utilised : 1. A. This is a palm-leaf manuscript belonging to the santinatha Jaina Bhandara, Khambhat.1 It was written in Vikrama Samvat 1229 (1172 A.D.). It contains only the Nyayabindu-tika. Prof. Peterson had started printing his edition (P) on the basis of this manuscript. After completing the printing of the first chapter he happened to come across another manuscript (B). Therefore, he collated the two MSS. and gave a list of the different readings at the end of the first chapter. As regard to the subsequent chapters, he selected the more appropriate readings out of the two and included them in his text, and variants were given at the end. I have made use of these variants in my edition. 2. B. This manuscript is included in the Bhau Daji collection of MSS. in the Bombay Branch of the Royal Asiatic Society. It contains the Nyaya-bindu as well as the Nyaya-bindutika. The collection of the Society records this manuscript as Laghu-dharmottara-sutra. Prof. Peterson has edited the Nyayabindu on the basis of this MS. He has also made use of this MS. in editing the Nyaya-bindu-tika. I have utilised the variants noted by him in his edition for the work. 3. C. This is a MS. of the Jaina Jnana Bhandara, Jaisalmer, established by Acharya Sri Jinabhadra Suri. It is a palm-leaf 1 For a detailed description, see Peterson's 'A Third Report of Operations in Search of Sanskrit MSS. in the Bombay Circle, 1887, No. 215.