Unique problem related to tax paid

It can not be Advance Tax as it is not paid within the due date.

U can rectify by showowing either as Self Assessment Tax including the applicable Interest U/s 234B & 234C or as Tax on Regular Assessment if the demand notice attached as per intimation U/s 143 (1).

I agree with Mr. Subhash and i think advance tax can not be paid after 15th march, whereas you have given the challan of advance tax on 26th march 2011.

Agreed with Mr Subhash & Mr Durga prasad, it cannot be treated as advance tax payment.

But  however, Income tax department ( as per 143-1 intimation) cannot ignore this tax payment. 

Just reconsider the facts of the case & file rectification. 

the same problem was happened in case of one of our client......... just claim that challan as Advance Tax only while filling rectification and write a note there................... do not forget to mention challan details, cpc gives the credit in such cases...........