Advance tax - bank fails

You shoud go to consumer forum, this the only way............... Income Tax Department is right on there point.

THis issue is with your client & Bank not Client & Department.......

Just give in writing to Bank & Say that u will go to consumer court. Hope they will solve your problem.

You are required to prove that it was a mistake committed by the bank. And write a letter to the bank CC to IT that a tax demand cannot be made on him because he has made the payment but the bank incorrectly registered in the wrong PAN. 

The proof you have of the bank's mistake must be concrete.

you have the challan copy bearing banks stamp (if manual) . ask the bank officials to clarify and ratify their act