Hi,
This issue is resolved and following are few observation.
1 - We need to have GSuite Account to implement this.
2 - With GSuite Account - Create Google Service Account - This will generate ID, CertificateFile and CertificatePassword - Use these three in Google Drive Scope.
3 - Go to your Google Drive - Share your main folder with Google Service Account Email.
Create Folder, Upload File - Are working correctly.
Not sure why same is not working in Normal Gmail Account.
Thank You.
Best,
K.Kannan.