Recent archaeological work at the Harappan site of Lothal in Gujarat has uncovered an extensive complex of brick structures that served as advanced maritime warehouses. These structures featured raised platforms designed to protect goods from tidal flooding, along with a sophisticated drainage system that integrated with the world's first known dry dock. Artifacts found within the ruins include seals from Mesopotamia and beads from the Persian Gulf, proving Lothal's role as a global trade hub.
Archaeologists believe these findings demonstrate that the Indus Valley Civilization had a centralized and highly organized commercial administration. The discovery of specific 'sorting areas' within the warehouses suggests that the Harappans practiced a form of quality control and standardized packaging for international exports over 4,000 years ago.