Itr v not sent for ay 2011-2012

Hi

I had only salaried income for AY 2011-2012. TDS was deducted by employer and Form 16 was issued. I then filed my returns through an agency. But forgot to send the signed ITR V to CPC  Bangalore. 

Now should I file a revised return for AY 2011-2012. OR since its past March 2012, I should file a fresh return for last year and select the option as 'original' as the return which I filed last year would be considered as void.

P.S. No tax is due from my side for AY 2011-2012

Thanks