Gmail has newly launched feature of tabbed of inbox. It is quite effective in organizing your mail. These tabs appear on top of you mail in Gmail inbox on your Desktop browser. The available to tabs are Primary, Social, Promotions, Updates and Forum.
Steps to activate tabbed inbox
1. Click on setting ( Gear on Right top of inbox).
3. Go to inbox and enjoy tabbed inbox.
Same step should be followed to disable Gmail tabbed inbox, just deselect all tabs from configure inbox settings.