Dispaly particular field based on the selection of the particular field?

<apex:page standardController="Book__c">

<apex:form >

    <apex:pageBlock >

        <apex:pageBlockTable id="mytable" value="{!Book__c}" var="item">

  <apex:column headerValue="Delivery">

    <apex:actionRegion >        

      <apex:inputField value="{!item.City__c}">

        <apex:actionSupport event="onchange" reRender="mytable"/>

      </apex:inputField>

    </apex:actionRegion>

  </apex:column>

  <apex:column headerValue="Delivery Type">

    <apex:inputField rendered="{!item.City__c = 'Chennai'}" value="{!item.Chennai__c}"/>

    <apex:inputField value="{!item.Banglore__c}"/>

  </apex:column>

</apex:pageBlockTable>

    </apex:pageBlock>

</apex:form>

</apex:page>