the old language of Persia/Iran, and ‘Indo Aryan’ i.e. Sanskritic are very close akin indeed. My mother is a Parsi, so I was fascinated to see that the Aryans may well have been Zoroastrians.
The origins of the Indo-Aryan and Dravidian language families have long been debated, with some arguing that Dravidian languages predate the arrival of Indo-Aryan languages in India.