Filed incorrect IT return for FY 2015-16

Hi,

I was using an online website for filing my returns for FY 2015-16 and mistakenly ended up filing a blank return showing no income and no tax paid. However, I haven't e-verified this return yet. 

My question is - since I haven't e-verified it, so can I file another return (the correct version) in the usual way and then go ahead and e-verify it? Assumption being that IT dept. will only consider this e-verified return and not the previous one (the incorrect and non e-verified version). 

Or else - do I need to file a 'revised' return? If yes, then before filing the 'revised' return, should I e-verify the original return, even though its incorrect? 

Thanks in advance.