History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c30.s3.37

v1.c30.s3.37

It would be observed that unlike their counter-parts in the north, the ramparts in the southern sites are smaller in size. This possibly was because the absence of the danger of massive floods in the case of the southern cities, which the cities in the north constantly faced. As such the fortifications around the southern cities could be treated as defensive or military measures.