Archaeologists at the Rakhigarhi site in Haryana have unearthed a specialized administrative archive belonging to the "Master of the Royal Fiber-Tensile Testing," a previously unknown bureaucratic role within the Indus Valley Civilization. The find includes a collection of intact bone calibration-weights used to measure the strength and elasticity of hemp and cotton threads intended for high-elite garments.
The excavation reveals that Harappan textile production was governed by strict metrological standards, ensuring that fibers used in maritime sails and urban upholstery met specific tension requirements. This discovery highlights the civilization's advanced understanding of material science and its commitment to standardized industrial quality control across its sprawling trade network.