________________ INTRODUCTION (1) The practice of respectfully acknowledging the help the author received from his Maithila pandit teachers is common to both Tarkatarangini and Sukhabodhika. In Tarkatarangini we have : श्रीमन्नारायणात्मजपष्करमिश्रमुखादधिगम्य वाचकगुणरत्नगणिना व्याख्यातं [प्रमाणम्] (p. 166). In Sukhabodhika we have : अतिप्रयासेन मया विनिर्मिता सुखबोधिका टिप्पनिका मुदैषा। चिन्तामणौ ग्रन्थमणौ निशम्य श्रीरामकृष्णमुखारविन्दात् // (2) Both refer to Gangesa and post-Gangesa Navya-Nyaya authors. (3) Both bear the title 'Vacakd' (4) Style and explanation of the same topics, of both the works, point to the same authorship. Thus we establish the identity of the author of Sukhabodhika sippanika with the author of Tarkatarangini. This being the case, whatever the author of Tarkatarangini says about his lineage applies in toto to the author of Sukhabodhika. He says : इति श्रीमत्खरतरगच्छाधीश्वर-युगप्रधान-श्रीजिनचन्द्रसूरिविजयिनि [राज्ये] श्रीजिनमाणिक्यसूरिशिष्यश्रीविनयसमुद्रगणीनां शिष्येण वाचकगुणरत्नगणिना...। श्रीमत्खरतरगच्छे श्रीजिनमाणिक्यसूरयोऽभुवन्। तेषां शिष्या गणयो विनयसमुद्राभिधाजयिनः / / तेषां शिष्यैस्तद्विद्वगुणरत्नवाचनाचार्यैः / निजवचनै कहे तोऽपरं श्रुतदेवताभक्त्यै / / इति प्रशस्ति // The gist is as follows: In the Kharatara Gaccha when there was the spiritual reign of Yugapradhana Sri Jinacandrasuri there flourished Jinamanikyasuri who had a disciple Vinayasamudragani; and this Vinayasamudragani had a disciple Vacaka Gunaratnagani. We know that this Jinacandrasuri was a contemporary of Hiravijayasuri on whom Mogul Emperor Akbar conferred the title Jagadgura' in V.S. 1641 (1585 A.D.). And, as we shall see below, this Gunaratna had completed his commentary on Kavyaprakasa in V.S. 1610 (1553 A.D.).