Tds

1. As u say u have already deducted tax in Mar 15 but going to pay now, u need to pay interest @ 1.5% pm or part thereof, from the date of deduction till date of payment
2. If the above is done, u need to revise the TDS return and furnish the contractor form 16A for the same.

You will be depositing the tds now but in which year's return you will show that is the ultimate question. If you will be rivising the return filed for 4th Quarter, then the contractor will not be having any objections. He will be convinced as and when you will issue him the form 16A.