Towns were the administrative centres .One of the kingdoms having town as their adminstative centre was Chola:
Thanjavur was their adminstrative centre and capital of the Cholas.It was situated on the banks of Kaveri.
In this town their was Rajarajeshvara temple .The palaces with mandapas were also present in this town. The kings held court in these mandapas. Barracks for the army were also present in the town.
These places were bustling markets; selling grain, spices, cloth and jewellery and also possess Wells and tanks that provided water supply to the town.