Ok, got what the catch is......Need to use Google Beta for that. The only thing i hate about Beta is - after u enter a search term, u dont get the option to select "Image results" from the top left pane.....it is non-existent altogether!!
When i type in Google in my browser, i am taken to "https://encrypted. google .com/"I then use the option "Go to classic google"......And in that this "+1" functionality isnt available.Its available only on that Encrypted Google, ie, Google Beta.