29 September 2008
No, as per section 40(1a)if TDS is not deducted or if deduted not paid within due date then the expenditure is not allowed. It is allowed in the year of payment of TDS.
29 April 2009
This amendment has come from 01.04.2006 vide finaance act 2006 before that this was not applicable. So expenditure in your query after the stipuleted period will be allowed only in the year of payment of TDS.