Mittani are the ancient people in Mesopotamia.
They were the ancestors of the Egyptians.
Look at the Sanatana Dharma connection.
Mitanni (/mɪˈtæni/; Hittite cuneiform KUR URUMi-ta-an-ni; also Mittani Mi-it-ta-ni) or Hanigalbat (Assyrian Hanigalbat, Khanigalbatcuneiform Ḫa-ni-gal-bat) or Naharin in ancient Egyptian texts was a Hurrian-speaking state in northern Syria and southeast Anatoliafrom ca. 1500 BC–1300 BC. Founded by an Indo-Aryan ruling class governing a predominantly Hurrian population, Mitanni came to be a regional power after the Hittite destruction of Amorite Babylon and a series of ineffectual Assyrian kings created a power vacuum in Mesopotamia.
The Mittanni was in northern Mesopotamia , roughly from 1500-1300 BC.
At its height the empire extended from Kirkuk (ancient Arrapha) and the Zagros Mountains in the east through Assyria to the Mediterranean Sea in the west.
The Sun King Akhenaten of Egypt who ruled between 1352-1336 BC was a son-in-law of Tushratta, the Mitanni king. The name Tushratta has been recorded in the Hittite cuneiform script.
Some have suggested that the Sanskrit origin of Tushratta is Dasaratha, a few others that it is Tvesaratha (having splendid chariots), a name which is attested in the Rigveda.
“The first Mitanni king was Sutarna I (good sun). He was followed by Baratarna I (or Paratarna great sun), Parasuksatra(ruler with axe),…. Saustatar (Sauksatra, son of Suksatra, the good ruler), Artadama (abiding in cosmic law)..Tushratta (Dasaratha), and finally Matiwazza (Mativaja, whose wealth is thought) during whose lifetime the Mitanni state appears to have become a vassal to Assyria”. Subhash Kak traces the ‘arna’ syllable in the names of the kings to ‘araNi’ (अरणि) meaning ‘sun’…
(Akhenaten, Surya, and the Rigveda’, Prof Subhash Kak (an Indian American computer scientist, previous Head of Computer Science Department, Oklahoma State University)
‘ “A number of Indo-European sounding words have been identified in the cuneiform documents of the Mitanni kingdom (1500-1200 BC). In addition to nouns and adjectives with parallels in Sanskrit this Hurrian speaking kingdom had kings with Indo-Aryan names and two documents even list the main Gods of the Indian pantheon….”
(‘About the Mittani-Aryan Gods’, Arna ud Fournet)