The #Dholavira #Harappan metrological ratios resonate with the Vedic principle of 'Addition of one unit', highlighting a sophisticated understanding of mathematics in ancient times. By applying these principles, the architectural text of Mansara (c.1000 CE) derives influential ratios such as 5:4, 3:2, 7:4, 2:1, 9:4, 5:2, 11:4, and 3:1, prominently used in Dholavira.

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Almost 3 millennium later the #dholavira metrological ratios were found applied to Iron Pillar and presently called Qutub Minar in Delhi
The ratio between the pillar's entire length (7.67 m) and the portion above the ground (6.12 m) is 5:4,

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This remarkable engineering feat highlights the Harappan civilization's sophistication in urban planning and resilience against natural disasters. #Archaeology #Harappan #Dholavira #Lothal #EngineeringMarvels

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Continuity of the #Dholavira Scheme of Ratios and Units
CE 600, Varahamihira wrote in his Brihat Samhita (53.4 & 5) The L of a king's palace is > breadth by 4th The L of house of a commander >the width by a 6th.
Two ratios, 1+1/4 & 1+1/6, are identical to 5:4 and 7:6

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