06 October 2010
No disallowance of the expenditure which is subject to TDS provision will be made, if after deduction of tax during the previous year, tax has been paid on or before the due date of filing of return of income.
[Effective Assessment Year 2010-11 Onwards]
The due date for depositing the tax is may 31st. but even if it is deposited after that date with interest but before filing the return u/s 139(1) the related expense will be allowed as a deduction in that same AY. (FROM AY 10-11)