Porus or Poros was a king of the Pauravas whose territory spanned the region between the Hydaspes (Jhelum) and Acesines (Chenab) rivers in what is now Punjab. This state was situated between the rivers Hydaspes (modern Jhelum) and Acesines (Chenab). Its capital may have been at the site now known as Lahore. Unlike his neighbour, Ambhi, the king of Taxila (Takshashila), Porus resisted Alexander. But with his elephants and slow-moving infantry bunched, he was outmatched by Alexander’s mobile cavalry and mounted archers in the battle of the Hydaspes. the Hydaspes (Jhelum) and the Acesines rivers, in the Punjab, in the Indian subcontinent, met Alexander the Great at the Battle of the Hydaspes River, in June 326 B.C. Porus brought war elephants with him that terrified the Greeks and their horses. Monsoons proved more of an obstacle to the Indian bowmen (who could not use the ground to gain purchase for their long bows) than to the Macedonians who crossed the swollen Hydaspes on pontoons. Alexander’s troops gained the upper hand; even the Indian elephants stampeded their own troops. King Porus surrendered to Alexander, but appears to have continued on as a satrap or viceroy, granted the land to the east of his own kingdom, until he was killed between 321 and 315 B.C. Alexander’s victory brought him to the eastern border of the Punjab, but he was prevented by his own troops from going into the kingdom of Magadha. The Indian campaign of Alexander-the Great in 326 B.C. has a lot of historical importance. This battle (Battle of Hydaspes) fills itself with great importance. According to the Greek records, In his conquest of occupying Asia, Alexander reached Hindukush mountains (in the present-day Pakistan) and made an alliance with Ambhi, king of Taxila and their combined force defeated the Purushottama (Porus) in the battle. Though he won the battle, impressed by the king, Alexander returned the kingdom. However, these dossiers beg serious doubts against the Alexander’s campaign to India.