it is better known as Battle of Gaugamela.
the battle took the place on the plain of Gaugamela between Nineveh and Arbela on the 1st October 331 BC.
who fought in it: Alexander the Great vs Darius III
"Darius III succeeded to escape with his Bactrian cavalry and Greek mercenaries into Media before the battle was over. Babylon welcomes Alexander as new "King of Asia"; Mazaeus, who wisely surrendered Babylon was confirmed by Alexander as satrap. Alexander with Mazaeus was so generous that he granted him the right to have his coin. The same as in Egypt, the local religion and priests was encouraged. The capital city Susa, also surrendered, releasing huge amounts of silver and gold which corresponds to 120.000 talents, when the gold was estimated in terms of silver. Reducing to obedience the mountain tribe of the Ouxians, he now continued over the Zagros range into Persia, and successfully took the Pass the Persian Gates, held by the satrap Ariobarzanes, Alexander entered in the capital of Persia, Persepolis and Pasargadae. "