Which one of the following towns is NOT located on a river bank?

Agra Bhopal Patna Kolkata

Bhopal

Out of the given options, Bhopal is the only town not located on the river bank. Agra is situated on the banks of the Yamuna River. Patna lies on the banks of the Ganges River. Kolkata is located on the banks of the Hooghly River.