Tds return

Dear All,

My client had deducted TDS from the employees salary and they have remitted it to IT authorities. Since the employees does not have PAN No they have not shown the TDS deduction in 26Q return. They are planning to show it in return after getting the PAN No from the employees? That is by amending the TDS return already filed or by showing it in the return of the subsequent quarter. Is it correct? please clarify.