the area of karachi (urdu کراچي) sindhi karachi in sindh has a natural harbor and has been used as fishing porty by local fisherman belonged sindhi tribes since prehistory the port was knownto the ancient Greeks by many names: Krokola, where Alexander the Great camped in Sindh to prepare a fleet for Babylonia after his campaign in the Indus Valley; 'Morontobara' port (probably the modern Manora Island near the Karachi harbor), from where Alexander's admiral Nearchus sailed for back home; and Barbarikon (Βαρβαρικόν), a sea port of the Indo-Greek Bactrian kingdom. Karachi was called Ramya in some Greek texts.[1] The Arabs knew it as the port of Debal, from where Muhammad bin Qasim led his conquering force into Sindh (the western corner of South Asia) in AD 712. Lahari Bandar or Lari Bandar succeeded Debal as a major port of the Indus it was located close to Banbhore, in modern Karachi.