hi there ,

As per your query,

The ruler used to issue common acceptable coins or seals, weights and measurements . Rulers were expected to provide relief during natural calamity. During flood, earthquake, epidemics, the ruler provided grains and other eatables to the affected people. During foreign aggression, the rulers defended the city.

Hope you understand , in case of any  issue  you can comment here and also make a new query for the same.

Thank you ,