Almost all the theories, religious philosophical and mathematical, taught by the Pythagoreans, were known in India in the sixth century BCE, and the Pythagoreans, like the Jains and the Buddhists, refrained from the destruction of life and eating meat.
Notes from Wikiquote
quoted in : Bhaskar Kamble, The Imperishable Seed: How Hindu Mathematics Changed the World and why this History was Erased, Garuda Prakashan Private Limited, 2022 ISBN 9798885750189