The Indians used chariots which were inferior to the Greek's cavalry. They did not have a well supported military infrastructure or a standing army. The Indian infantry and cavalry were poorly armoured, lacking in metal armour, and their swords were no match against the sarissa of the Macedonians. Porus himself failed to take the initiative, mainly trying to counter his opponent's moves. Greek historians agree that Porus fought bravely until the end. During the later rule of the Maurya Empire, tactician Kautilya took the Battle of the Hydaspes as a lesson and highlighted the need for military training before battle. The first Mauryan emperor, Chandragupta, maintained a standing army. The chariot corps played a marginal role in Mauryan military infrastructure. Notes References Citations Sources Modern Green, Peter (1974). Alexander of Macedon: A Historical Biography. Rogers, Guy (2004). Alexander: The Ambiguity of Greatness. New York: Random House. Ancient Diodorus Siculus (90-30 BC). Bibliotheca Historica. Quintus Curtius Rufus (60-70 AD). Historiae Alexandri Magni. Plutarch (75 AD). The Life of Alexander the Great, Parallel Lives. Metz Epitome. External links Hydaspes (Jhelum) Hydaspes River Hydaspes River Military history of India 326 BC History of India Wars involving ancient India 320s BC conflicts Foreign relations of ancient India