Hi Abhijeet ,
Yes I see this WSDL twice in my WSDL Folder it shows something like this :
src/wsdl/rootwsdl_importedwsdl_1_MailNotificationService.wsdl
src/wsdl/rootwsdl_importedwsdl_2_MailNotificationService.wsdl
src/wsdl/rootwsdl_MailNotificationService.wsdl