Hi @prabhu
Be sure to check your console log to see if any ERROR is returned in the AJAX call during upload.
Your next step is to search this forum / google for some existing threads which cover how to edit the user privileges to allow the user to upload.
Also, you may find you have a security plugin which is stopping the upload script from being accessed from the front end. This will require some debugging / detective work to find out what’s wrong and find a solution.
Good luck.
Thanks
E