139(5) or 139(1)

 Hi,

I missed entering one AIR-IT entry (one advance tax payment) in ITR for AY08-09. The return was filed withing due date. There is no change in income, only the change in advanced tax payment.

Now thanks to the information IT department is sending by email, I got this information about missing advanced tax payment and want to electronically file revised return by today (31-July).

1. What is the section under which this revised return is to be filed? Is is 139(5)?

2. If so, the old ITR-2 form which gives fixed codes for field "return filed under section" (E.g. "11 u/s 139(1)") does not give code for section 139(5). How this is to be addressed?

3. I supposed even for last assessment year, the ITR-V is to be sent by post like the current assesment year.

Thanks,

Vivek.