About Satyananda Saraswati
Satyananda Saraswati, was a Sanyasi, yoga teacher and yoga guru in both his native India and the West. He was a student of Sivananda Saraswati, the founder of the Divine Life Society, and founded the Bihar School of Yoga in 1964. He wrote over 80 books, including the popular 1969 manual Asana Pranayama Mudra Bandha.
Biography source:
Wikipedia