On the author, the editor cites the closing verse of the work (chapter 25, verse 54), which…

On the author, the editor cites the closing verse of the work (chapter 25, verse 54), which says that Ugrāditya, by the grace of his gurus, composed the work in Sanskrit by condensing the Prāṇāvāya scripture written in Ardhamāgadhī; he adds that the great sage had no personal interest in writing it, the exposition of truth being his main aim.

Why it is kept for review: The author Ugrādityācārya and the source of his work.

उग्रादित्यगुरुर्गुरुर्गुरुगणैरुमदासिसैरुयास्पदं । शास्त्रं संस्कृतभाषया रचितवानित्येष भेदस्तयो:॥ अ. 25 शलो. 54