History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c29.s1.t1.13

v1.c29.s1.t1.13

All the towns, big or small show regular orientation. The towns of Harappa, Mohenjo-daro and Kalibangan depict two distinct features, namely, on the west there is a distinct citadel mound which is artificially built on a high podium by use of mud bricks. From the center of the citadel branch out long axis running north-south and to the east. The citadel outstands the lower city which houses the main residential area. Either both the citadel and the lower city or at least the citadel were surrounded by massive fortification wall.