Fort:
(i) Forts were built for military construction and for safety. For safely, the fortifications were built on high hills, on the banks of deep rivers or in the plains.
(ii) Deep trenches were built near the. fort, which was filled by water and poisonous animals which helped in stopping the enemies from entering the fort. They were said to be Parikhaa.
(iii) The forts were the safe place of residence for the rulers, army and general public.Due to the adequate arrangement of agricultural food storage, Vapi, Kund, reservoir etc in the fort, soldiers and warriors able to kept all the routes closed for many months and through this they prevented the attacks by enemy.