Hi Mallick, Try setting"maxHttpHeaderSize" for the <Connector/> in your server.xml. Its default value is 8192 bytes. I guess you're exceeding this limit.
i.e.
<Connector executor="tomcatThreadPool"
port="8080" protocol="HTTP/1.1"
connectionTimeout="20000"
redirectPort="8443"
maxHttpHeaderSize="{Something greater than 8192}"/>
More details/exact info:
http://tomcat.apache.org/tomcat-7.0-doc/config/http.html#Standard_Implementation
Best Regards,
Martin
