I dont know why some Hindus themselves are shy of it to admit that Yoga is very much a part of Hinduism.
In fact I lol when I see some yoga guru's saying it in public that Yoga is not attached to any religion, just to get more students an earn money. I dont say that it cant be practiced by non hindus or practicing it efects his religion..but yoga is very much a part of hindu religion.....or else how come you justify the chanting of mantras like in Transcendental Meditation , pranayam or surya namaskar etc. It is very much Hindu and Hindus should stop saying otherwise just to sell their product. If that was something in sikhism I would have proudly spread the word and take pride in calling it a part of sikhism, without worrying aboutthe fact tha it may be disliked by some religious mad dog...if people like it they will do it, if the dislike it they wont. simple.