What is a reason that Indian and Iranian Zoroastrians developed differences in their rituals and festivals?

Question

Quizplus · Accepted Answer

The Indian and Iranian Zoroastrians were separated geographically for centuries, leading to the development of different rituals and festivals. They did not worship different gods or have significant influences from other religions, and while they had different beliefs about spiritual entities like the Bounteous and Deceitful Spirits, this alone would not have caused such divergent practices. The main reason for the differences in rituals and festivals between Indian and Iranian Zoroastrians is their physical separation for more than a thousand years. Both groups have developed their own cultural practices and linguistic differences over time. While Iranian Zoroastrians speak Persian, Indian Zoroastrians speak Gujarati or Hindi. However, they still share a common core belief system and have many similar practices in their religious ceremonies.

What Is a Reason That Indian and Iranian Zoroastrians Developed