Delay in filing revised return

I failed to set off losses of assessment year 2005-06 carried forward to assessment year 2006-07 inspite of having requisite income to do so. Return of assessment year 2006-07 was filed within the due date as prescribed u/s 139(1). After noticing the ommission, I filed revised return u/s 139(5) on 31.3.08 but due to technical glitches,I could file it only on 1.4.08. Hence the revised return becomes time barred??What are the remedies available to set off the losses.