Sindhu,
Not really. The assignments are dumped into folders that have a folder name which is the user id of the student who uploaded the file. This helps keep the documents associated with the user.
If you are wanting quick ways to harvest the submitted files for an assignment, check out this discussion: http://moodle.org/mod/forum/discuss.php?d=39326.
Scott
Assignment
Answers of same assignment in one folder
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