There were significant contacts with India going back thousands of years, apparently.
Ashurbanipal is the rendering of the king's name from the Hebrew Bible; in the Akkadian it would be more like Aššur‑bāni‑apli, which translates to 'Ashur is the creator of an heir.'
Akkadian names were like full sentences, and make sense when thought of as the joyous exclamations of a parent upon grasping their newborn baby.
Here's one interesting read on how the myths evolved https://videshisutra.com/2013/03/22/hariti-saraswatis-persia...
Yes, except that they call them ahura, IIR(ead)C. Similarly, that sacred / intoxicating drink of the Vedas, called soma, was called haoma in Persia, I've read.
However I am not sure there would have been any linguistic connection between the regions’ tongues, but who knows?
But I am not an expert so this is simply my surmise. There’s plenty of tantalizing evidence against my guess!
I should check out the Rigveda.
But from a more conventional perspective, the epic of Gilgamesh is much, much, much older than the Rigveda.