Ancient India — UPSC Mains Model Answer

The Great Bath is among the earliest examples of waterproofed public infrastructure. It was constructed using burnt bricks laid with gypsum mortar, and a layer of bitumen was applied between brick courses to ensure impermeability. This level of engineering precision indicates both technical knowledge and organised civic administration.

Structures at Harappa and Mohenjo-daro were initially labelled granaries based on their scale and ventilation features. However, archaeobotanical evidence has not conclusively confirmed grain storage as their primary function; some scholars now interpret them as assembly halls or warehouses. The identification remains contested in contemporary archaeological literature.

Lothal in present-day Gujarat possessed a brick-lined basin widely regarded as a dockyard, connected to an ancient channel of the Sabarmati river system. Finds of Persian Gulf seals and standardised weights at Lothal corroborate active maritime and overland trade with Mesopotamia and the Arabian coast.

The uniformity of brick sizes, grid-pattern streets, and centralised drainage across geographically dispersed sites implies a degree of administrative coordination that remains unexplained without a deciphered script. Understanding this governance model holds lessons for contemporary urban infrastructure planning in terms of standardisation and public utility management.