I was reading about Mohenjo-daro sites in current day Pakistan.
The text talked about something called "lower town". What is lower town in that context?
"Kalibangan is situated on the left bank of the river Ghaggar in Rajasthan. There is same pattern of planning as at Mohenjo-daro and Harappa. There is a citadel on the West side and a lower town on the east."
SOURCE: Above excerpt is taken from the book titled "Ancient India", by V. D. Mahajan, S Chand Publications.