What it says
In the list of divine witnesses the Mitanni side calls on mi-it-ra, u-ru-wa-na, in-da-ra and na-sa-at-ti-ya: Mitra, Varuna, Indra and the Nasatya twins (the Ashvins), the same gods praised together in the Rigveda. A horse-training manual from the same archive, written by the Mitanni trainer Kikkuli, uses Indic number words such as aika (eka), tera (tri), panza (pancha) and satta (sapta).
It is the oldest dated written record of Vedic deities anywhere, from far outside Bharat, so the Vedic gods were already being invoked by name by the 14th century BCE.









