History of Technology in India, Vol. I: From Antiquity to c. 1200 A.D. v1.c29.s1.t4.2

v1.c29.s1.t4.2

During the period of 6th century B.C. to early centuries of Christian era we get planned cities, with fortification wall, gates, bastions and towers (made of mud, unbaked bricks, baked bricks, wood and stone) some cities have moats, well laid and planned roads, streets and properly aligned houses with cardinal points in mind, reasonable systems of drainage, sanitary provisions, and system of water supply.