thank you , as per your saying i now understand that we have to save our WAR file in TOMCAT_HOME\webapps\ .and after doin this it have worked ,
btu sorry to disturb you please tell me that how to create WAR file in tomcat.

thank you
gaurav

as long as I know... simply use the 'jar' program. For example if your web project saved in TOMCAT_HOME\webapps\project , just enter the project directory and use the jar program like this :

 jar cvf project.jar *

for more information, read "beginning J2EE 1.4" publised by Wrox :)
Regards,
Panji