By mistake tds has been deducted on interest received by partners in partnership firm

Please revert, what next to do where tds deduction is not applicable on same. 

As TDS provision are not applicable on Salary, Interest received by partners in firm. What to do, where client by mistake has deducted Tax on Interest by keeping in mind it is taxable in his individual head. 

What to do, instead of paying advance tax, he had paid TDS on interest on Partners Capital Account.

Kindly assist on same.