<P> Alexander had already crossed the river, however, and his horse archers impeded the young Porus's cavalry . Young Porus also faced an unexpected disadvantage: his chariots were immobilized by the mud near the shore of the river . After his army was routed, young Porus was among the dead . As news reached the elder Porus, he understood that Alexander had crossed to his side of the river and hastened to face him with the best part of his army, leaving behind a small detachment to disrupt the landing of Craterus' force should he attempt to cross the river . </P> <P> When King Porus reached the point where Alexander's army was arrayed, led to believe that his own cavalry outnumbered Alexander's, he ordered his cavalry to charge . The Indians were poised with cavalry on both flanks, their center comprising infantry with War Elephants which were heavily armored and were strapped on with a castle - like howdah on their back carrying a trio of archers and javelin hurlers towering among or before them in equal intervals of fifty feet to defend the vulnerable flanks . All of the War - Elephants were equipped with fire - hardened leather and quilted armor for protection while their foreheads and trunks bore steel - plates to defend against enemy arrows . The Pauravan Army itself was dressed in flamboyantly hued outfits wearing steel helmets, bright scarves and baldrics wielding axes, lances and maces . King Porus, seated atop the tallest War Elephant selected from his elephant corps, himself was not mounted on Howdah, as he wore a remarkable chain mail armor and hence had no need of the additional protection of a tower . </P> <P> The Macedonian heavy infantry phalanx were outnumbered 1: 5 against the Indian infantry . The Indian infantry still suffered setbacks due to the reach of the enemy's longer sarissas and being light to unarmored on the torso . Even their heavy armor - piercing bows were inaccurate because of the slippery ground, though the muddy ground was an advantage to King Porus' light infantry . The Macedonian army situated directly across from Porus' army crossed the river to directly meet the Elephants. The supposed 200 elephants prevented any frontal attack . </P> <P> Alexander commenced the battle by sending his Scythian hired horse archers to shower the Indian right cavalry wing . His armored Companion Cavalry was sent to the outnumbered Indian left cavalry with him leading the charge himself . The rest of the Indian cavalry galloped to their hard pressed kinsmen on the right wing but at this moment, Coenus's cavalry contingent appeared on the Indian rear . The Indians tried to form a double phalanx, but the necessary complicated maneuvers brought even more confusion into their ranks making it easier for the Macedonian horse to conquer . </P>

Who won the battle of hydaspes in hindi