🇮🇳 India · Hydraulic works
Harappan Lothal — Dockyard and Warehouse Platform
Harappan (2600–1900 BCE mature; dock 2400 BCE) · Indus / Harappan (Lothal)
Ahmedabad Lothal excavated by Rao 1954–63, dock at 2400 BCE, bead factory and Persian Gulf seal.
🇵🇰 Pakistan · Ancient city
Banbhore
Scytho-Parthian to Islamic (200 BCE–1300 CE) · Scytho-Parthian to Hindu–Buddhist to Umayyad Islamic
India's oldest port tell—47 ha, 13 centuries (200 BCE–1300 CE): Scytho-Parthian to India's earliest mosque (727 CE).