@ Dear Rajesh Kothari
1st of all we have to be aware that when we present our cheque for any tax payment to govt, we must ensure that it is presented well before time to take effect before the due date. where when we get stamped with "received date" we feel ensure that we have done it,
there are multiple issues within the interbanking transactions, and be in the shoe of SBI for a while, they get thousands of challans every month for posting to NSDL, each challan has to get passed through two officers, 1st by the clearing member, then by the the person who deals with segregating with tax department and to NSDL,
at the point of last date the traffic is unusually heavy, due to service tax, incometax, ESI, PF, and what not , for all such tax collections most places sbi is only option to pay.
the cash payments upto 7th of the month has must to be posted on NSDL "within date" alongwith all clear cheques upto the banking hours of 7th of the month, otherwise the party will get penalized. also the NSDL server get hectic busy at end hours , so the bank officers work too late to finish their work by the day.
but when its not effected by the last date, by late payment/ return of cheque/ hold of cheque by clearing house or by the paying bank, the late is already initiated, at the point the banker who is posting the data to NSDL has finished the work of posting to NSDL and now busy to reconcile the data with the collection amount and crediting the same to the concerned departments, which is a mind tiring work within 7th to 14th every month, coz they have to report all such data collectively on account of every govt department and then credit the data partywise to the concerned department.
as once the delay is established they take the next lot only after the finish of the work which is executed "within due date", and here they report 1-2 day late, coz by this lot they have no option to report to NSDL and department separetely but at same time they have to.
keeping a practice to tender the cheque "well before due date may resolve such issues, while online payment of taxes get full satisfaction and correct credit on same date.
Since we are on edge of transformation of manual payment to E payment, so why not we take benefit of these, this will reduce the burden on the banking staff as well as will reduce the percentage of errors for which the parties suffer a lot.
There are hundreds of cases where advance tax paid by cheque on other bank has been credited in wrong PAN, and a remarkable percentage of tax payers has lost their money coz the bank has no authority to correct the same after seven days, and the same is noticed by the assessee after years................now what they have to do ? run door to door to put request to every so called CIT for correction , and face the consequences of non payment?
now back to your case ..................
you have made payment in sept 2011, filed the return in oct 2011, ( by the time of filing return you was well informed about the error done) and making grivance in aug 2012, after 10 months, if brought upright within seven days of stamp then bank had to act with nsdl and maybe they had option to correct the issue with best possible efforts with them, but after 7 days of posting to NSDL they have no authority to amend or revise the same, as the NSDL data has gone public by this time.
either we have to change ourself with change of system with time, or we have to suffer with such issues as we are not ready to give up the old practice, where errors were common.
no harsh feeling, but keeping self to update status is always better option, as it will bypass most general issues.