The SDYR, is affiliated with the Sivananda Yoga Vedanta Centers, a non-profit, worldwide network of ashrams and  centers founded by Swami Vishnudevanada to spread the teachings of yoga.  Sivananda Yoga Vedanta Centers have Ashrams in Val Morin, Canada; Woodbourne, NY; Grass Valley, CA; Paradise Island, Bahamas; Neyar Dam, India, and Netala, India, and centers in India, South America, and most major cities in Europe and North America.  They have affiliated teachers worldwide. Dattatreya and Sita Lakshmi are affiliated teachers with Sivananda Yoga Vedanta Centers, and are disciples of Swami Vishnudevananda.
Email: yoga@yogadoor.com