The title is misleading: there are many forms of yoga, and there are older people than her in India practicing them. She might be the oldest person teaching Hat

The title is misleading: there are many forms of yoga, and there are older people than her in India practicing them. She might be the oldest person teaching Hatha Yoga, now commonly called "yoga", focusing on asanas and maybe some pranayamas - that's mostly it. Hardly anyone is teaching the complete eight limbs because most people are interested only in asanas, and, more importantly, there are very few people who achieved mastery over all eight branches and are able to transmit their knowledge.