Raghu,
I am able to zip the file through zipbean and send it to proxy as attachment with javamapping.
But however one problem is when i zip a file for ex : abc.xml and sent it to proxy as attachment ..they are receiving file as abc.zip but inside that the zipfile i getting renamed to untitled.bin
I tried using MTB bean for this and gave static name as abc.xml in modulefor content type then they were receiving inside zip file as abc.xml ...but as this name cant be constant is their any way this name can be handled dynamically.
Few blogs tell zip-bean with dynamic bean can be possible only by custom module !