After Uploading zip file,
The package could not be installed. No valid plugins were found.
Plugin installation failed.
It sounds like you might be trying to upload the combined zip file. From your codecanyon download page you can download just the "Installable WordPress file only" and upload that to your WordPress, or open the zip file you have and take out the shwcp.zip file to upload to WordPress.
See if that helps,
Thanks for the rapid response. It's successfully installed...
Good, you're welcome!