Hello Amit,
there is a bug/feature that prevents regular tiddler exporting.
The problem was than when the save button was clicked, just the tiddlers loaded at that moment were included in the generated wiki. For fixing that problem I created a custom saver that exports the entire database in JSON format. The problem is that this prevents any other kind of export.
I want to fix this issue soon providing both options, normal export and database backup.
Meanwhile you can export all your tiddlers in JSON format from Noteself just by clicking the regular save button. This will generate a JSON file that you can then import into any other tiddlywiki, including the node.js edition that will convert each tiddler into a separate file.
Using just TiddlyPouch plugin will not make any difference because the bug actually lives on that plugin.
Regards