Stamp paper has no limitation period or expiry date. A stamp paper can be used at any time after the purchase of it, The Indian Stamp Act only fixes a period to get the refund of unused stamp papers i.e. six months from the date of purchase but it does not define anywhere the time period for use of stamp paper.
Supreme court in its decision Dated: 19/02/2008,
Case: Thiruvengada Pillai Vs Navaneethammal