Sure you know Bishnois better than I do. I stand corrected on the meaning of Bishnoi. Thank you for the correction."Bishnoi (also known as Vishnoi) is a religious sect found in the Western Thar Desert and northern states of India. They follow a set of 29 principles/commandments given by Guru Jambheshwar."
Bishnoi = Twenty + Nine commandments.
I am from Rajasthan and perhaps know Bishnois better than you do. Sure, they worship Lord Vishnu and other Gods and Goddesses too.
However, how does this even make a relevant example for what I asked. The Guru of this tribe established the belief only a few centuries ago. Moreover, the name of the Guru is also Aryan. So how on earth is this a non-Aryan tribe that imparted vegetarianism to Vedic religion?