It wasn't about gymnastics or movements at all. It was a vast spectrum of different technics and practices used mainly for spiritual purposes, thre were many an

It wasn't about gymnastics or movements at all. It was a vast spectrum of different technics and practices used mainly for spiritual purposes, thre were many and many "yogas" coming from different teachers. What we call yoga today, was a system invented by Tirumalai Krishnamacharya as an amalgamation of many of these ancient practices into one modern system. They were not previously widely popular and you couldn't easily learn them, most of Indians didn't know about it. What Krishnamacharya changed was that he started a school of yoga and was traveling the country and popularizing it - and the reason this was possible was that Maharajah liked the modern fitness ideas coming from the West and though it would help his people to accept these habits of paying attention to fitness, but it was time of Indian nationalism and he wanted to protect their own traditions and ways instead of just taking it from Brits, so he hired Krishnamacharya to make an authentic Indian system of training.