I recently accepted Islam. Before becoming Muslim, I used to touch the feet of all elders, and also used to say them "Namaste." I just found out it is shirk, but my mom forces me to do that.
Can I say "Mamaste" instead of "Namaste"? When bowing to touch feet of elders, can I just touch the ground and say very silently "there is none worthy of worship but Allah?"
I have to bow and to say Namaste as I am secretly following Islam, and I can not deny doing so as my mother will be sad and will doubt. Is the method that I mentioned correct and does it contain any shirk?