History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c30.s3.10

v1.c30.s3.10

towards the top (Wheeler, 1947, pp. 19-20). The core of the wall was of mud brick but it had burnt brick revetment 1.20m to 1.80m thick, externally. A sort of buttress was added internally, as an after- thought, in the form of a sloping platform of mud-brick. Bastions were erected at regular intervals and at least some of them were greater in height than the circuit wall. The main entrance was on the northern side. Evidence of guard rooms flanking the subsidiary gateways in the western wall was clear. At the southern end a broad ramp or stair led up to the citadel. Three phases or reconstructions have been identified by the excavator.