The Indus Civilization (Cambridge History of India, Supplementary Volume) c11.4

c11.4

The rising water-table was doubtless already a problem in Harappan times, for the excavation just referred to revealed how the citadel-platform had to be protected wholly or in part by a mud-brick embankment or *bund* 43 ft. wide at a relatively early date. At the same time a large burnt-brick drain which ran along the foot of the platform was rebuilt 14 ft. higher up; and later the *bund* was itself reinforced externally. Against the outside of the *bund* layers of alluvium accumulated to the present level of the plain.