Would you agree that the drainage system in Harappan cities indicates town planning? Give reasons of your answer.

Explanation

In the words of Dr. A.L. Basham, "No other ancient civilisation until that of Roman has so efficient a system of drains." The ruins of the town below a remarkable skill in town-planning and sanitation with an eye to the facilities and comforts fo the city dwellers.
I agree with given statement, I can sight following reasons in support of my answer.
(i) The drainage system needed a planning for its excution. It seems that first drainages were laid out and then houses were built along with the drains.
(ii) Every house was supposed to have at least one wall along a street to allow the domestic waste water to flow out in the street drains.
(iii) The plans of the Lower Town show that roads and streets were laid out along an approximate grid pattern intersecting at right angles.
(iv) It appears that human settlement was made by planning from beginning. The city was restricted to a fixed area on the platforms.
(v) Bricks, sundried or baked were of standard ratio. The length and breath of bricks were of four times and twice the height respectively. These bricks were used to all the sattlementof the Harappan civilization.