Hi Pavel.
I am an Indian and have done these exercises in the traditional training arenas, the dangal or akhara as we call them. Your name of "youth-restoring calisthenics" is well chosen.
When I was 16-17, I tried a bridge (after seeing an actress do it in a movie) and messed up my back, specifically the left shoulder blade. I had pain in it for more than a year. X-rays didn't show anything. It was a kind of dull pain that would wax and wane. I tried some topical pain relievers but there was no relief. I even tried some traditional osteopath treatments as well, but they required a lot of prep and I couldn't use them regularly. The pain remained. Eventually, I got fed up and started doing Indian pushups (what you call Hindu pushups) and the pain cleared up literally within days. Years later I busted up my knee and front squats came to my rescue, but that is a different story.
This was before I joined the dangal. I joined one in my graduation years and enjoyed it. My only gripe was the lower body work. Reps upon reps and no progression. Some guys would hold a dumbbell in each hand and elevate their heels on a weight plate or something. But not enough.
There the rule was you couldn't enter the wrestling pit unless you could do 500 Hindu squats - in a row. I went up to 300, as I remember it now, and started having pain just below the calf. Went up to the coach, a grizzled wrestler, insanely strong old man, and told him about it and he said that the pain will be there and I should learn to live with it. That put me off and as life moved on, I didn't try to keep up. Overall, it was a good experience and I learned about myself a lot.
It is really strange that in India Gama is a household name but nobody uses his exercises. Nowadays everybody wants to use machines because they are safer. Anyways, good luck with this endeavor of yours sir.
