Although historically unsubstantiated , the story of how Zoroastrians gained permission to step on the shores of Gujarat continues to be critical to the self-identity of the group . Per the commonly told narrative , the Rajah of Sanjan , summoned them and demanded to know how they would n't be a burden on or a threat to the indigenous communities . Replying to their request of practising their religion and till the land , he showed them a jug full of milk , saying Sanjan like it was full . In one version , a dastur added a coin to the milk , saying like the coin , no one would be able to see that they were there but they would enrich the milk nonetheless . In another version , he added sugar instead and claimed that like it , they would sweeten lands of Sanjan . In both of them their settlement is approved by the Rajah who addresses certain conditions for it : they would explain their religion , promise not to proselytise , adopt Gujarati speech and dress , surrender their weapons and only conduct their rituals after nightfall . During this period , Zoroastrian traders faced execution outside India , including in China where many were killed during the Guangzhou massacre
Guangzhou massacre
Guangzhou massacre
Zoroastrianism in India