Having conquered Drangiana, Arachosia, Gedrosia and Seistan in ten days, Alexander the Great (known in Urdu as 'Sikander-e-Azam') crossed the Hindu Kush and was thus fully informed of the magnificence of the country and its riches in gold, gems and pearls. However, Alexander had to encounter and reduce the tribes on the border of Punjab before entering the luxuriant plains. Having taken a northeasterly direction, he marched against the Aspii (mountaineers), who offered vigorous resistance, but were subdued. Alexander then marched through Ghazni, blockaded Magassa, and then marched to Ora and Bazira. Turning to the northeast, Alexander marched to Pucela, the capital of the district now known as Pakhli. He entered Western Punjab, where the ancient city of Nysa (at the site of modern-day Mong) was situated. A coalition was formed against Alexander by the Cathians, the people of Multan, who were very skilful in war. Alexander invested many troops, eventually killing 17,000 Cathians in this battle, and the city of Sagala (present-day Sialkot) was razed to the ground. The Battle of the Hydaspes was fought astride the Jhelum River in western Punjab against the regional chieftain Porus, and the Siege of the Malli Tribe which occurred at the confluence of the Indus and Hydaspes Rivers near modern Multan (during which Alexander suffered a near-fatal arrow wound). Alexander left Punjab in 326 B.C. and continued to campaign down the course of the Indus River in modern-day Sindh and Baluchistan.