snmpgetnext with multiple varbindes

Hi All,
        I am using net-snmp-5.2.1.2 version, I am not using the default implementation code generated by mib2c. I am registering the handler directly, whenever request comes the handler is invoked for getnext request i am forming the return oid. In case of snmpget with multi-varbind i am getting the response for all the varbindes, but the problem is with getnext only the response for forst varbind is displayed by the manager(i.e. net-snmp utility function snmpgetnext) but inside the handler i am returning the value for both the varbindes
Rgards,
Sasikumar.