Error in quoting PAN in Returns

RAJ (CA) (120 Points)

21 April 2010  

An Assesse is filling ITR from last 5 F.Y.

Self Assessment Tax was (only) applicable and paid for F.Y 2008-2009 in June 2009. Return of the same was filed in June 2009.

For other Returns the Tax liability was NIL.

Now in all Returns and last years Tax Challan there is mistake in quoting PAN No. (The mistake is just due to inadvertance/oversight)

All digits quoted are right, just in the second digit instead of "H" "N" is quoted by mistake.

Henceforth the same is taken care of, but what to do about the last returns is any clarification to ITO required?

Is any other action required to be taken?