On the occasion of the third International Yoga Day, India's oldest Yoga guru Amma Nannamal (98 years old) along with world's oldest Yoga teacher Tao Porchon-Lynch (98.5 years old) on Wednesday demonstrated various 'asanas' in Bengaluru at Kanteerava Outdoor Stadium. Besides the two nonagenarians, social activist Anna Hazare and Union Minister Ananth Kumar also attended the same event.