Author of one of the important earlier texts of haṭhayoga. It is composed in the format of his answers to questions asked by his student Chaṇḍakāpāli. It's been dated as late as 17th century, although I don't know about it.
Bibliography:
Gheraṇḍasaṃhitā.
Rai Bahadur Srisa Chandra Vasu, tr., Gheraṇḍa Saṃhitā (Bombay 1895, Allahabad 1914, Adyar 1933). Reprint by Sri Satguru Publications (Delhi 2005). Includes Sanskrit text and English translation.
Shyam Ghosh, The Original Yoga, Munshiram Manoharlal (New Delhi 1999) contains the text and translation, as well as Śivasaṃhitā and Pātañjali's Yogasūtra.
P. Thomi, Gheraṇḍa-saṃhitā, Sanskrit-Deutsch (Wichtrach 1993).