Hatha yoga

Hatha yoga, also called hatha vidya is a kind of yoga focusing on physical and mental strength building exercises and postures described primarily in three texts of Hinduism .
1. Hatha Yoga Pradipika
2. Shiva Samhita,
3. Gheranda Samhita

Many scholars also include the preceding Goraksha Samhita authored by Gorakshanath of the 11th century in the above list.Gorakshanath is widely considered to have been responsible for popularizing hatha yoga as we know it today .