Having studied under Yogachirini Kalavathi Devi at Om Studio, Cardiff, I was tought a classical Eight-Limbed Yoga, deeply rooted in the teachings propagated by Ananda Ashram, Pondicherry, India.
"Yogamaharishi Dr. Swami Gitananda Giri Guru Maharaj was the purveyor of a vast, scientific, rational and systematic body of yoga knowledge.  The vast living and vibrant knowledge which he imparted so freely to hundreds of thousands of students included a complete and rational system of Hatha Yoga practices which provided a base for the higher techniques.  (icyer.com)" -  Ananda Ashram official wibsite