world. Sri Sri Ravi Shankar ( 1956 -), a mahayogi and founder of 'Art of Living'. Sheshadri Swamigal ( 1870 - 1929 ), was a Siddha or religious mendicant who lived in the forests of Arunachala . Swami Sivananda ( 1887 - 1963 ) was a yogi who lived in Rishikesh