Hathayoga-Pradeepika: Written in the fifteenth century by Yogi Svatmarama, this book serves as a guide to current day yoga practices. 15 Asanas, 6 Kriyas 8 Pranayamas, 10 Mudras, and Meditative practices such as Nadanusandhana are explained in this book. After about 120 years, this book has now been translated by Dr M Jayaraman for present day Tamil readers.