Notice u/s 1431a

Ask your clients to tell their employers to rectify TDS return.

Whatever u r saying has become a common problem. either the the PAN no is wrong or not in data base or incorrect challan no is typed.

After TDS return is rectified see 26As of that assesse and see whether all Tax credits are in place and then file  for rectification and claim refund. 

I agree with S. Shiroor.

The basic problem is that when you file TDs return of government institution , you have to mention the BIN details of treasury with whom you have deposited the tax money by way of book entry. Earlier the IT department were not matching the tax deducted with the challan no. Of treasury. But recently they have started such practise be cause of which most of the government assessee are receiving such short deduction notices. The best solution as mentioned earlier is to revise the TDs return for said period and check the same wrt 26as.

Yes TDS return needs to be revised.

If the departmental authorities are not prepared to cooperate to file revised return or limitation for such filing has already expired, what to do for rectification on the basis of TDS certificate ?