Hi Mrinalini,
If you go to SoShareit.com, this should re-initialize the plug-in, then you need to keep your computer running so that the upload can finish. If you let your computer sleep before the upload completes, it pauses the transfer, and returning to the SoShare site is the only way to resume.
During the beta, there’s no indicator for you to see the progress if you closed the original upload page (the one with the status bar). But you’re right, you should have received an email once the upload completed.
You can always start over again, too, and make sure the browser session stays open the whole time so you can watch the progress.
Sorry it’s a bit clunky, but that’s the way it works during beta, since the engineers have been focused on improving the back end.
Cheers,
–Porfirio