"As regards the dhanus of 1.9 m, which I calculated at Dholavira, R. Balasubramaniam showed in a recent study that in combination with an angula of 1.76 cm, it expressed all the dimensions of the Delhi Iron Pillar with unexpected harmony: the pillar’s total length of 7.67 m, for instance, is precisely four dhanus; the pillar’s diameter, thirty-six angulas at the bottom, shrinks to twenty-four angulas at ground level, finally to taper off at twelve angulas at the very top. If this were not enough, the ratio between the pillar’s entire length (7.67 m) and the portion above the ground (6.12 m) is 5:4, verified to 0.2 per cent—again, Dholavira’s master ratio! This bears out what we have already concluded from the texts : Harappan ratios and linear units survived the collapse of the Indus cities and passed on to those of the Ganges Valley."