Allowing the appeal of the asseessee the Tribunal held that diminution in value of inventory due to obsolescence  the valuation is done on the basis of  cost or net realisable value whichever is less  on the basis  of certificate of Auditor. Addition  made by the Assessing Officer is deleted. The Tribunal also held that  the diminution in the value of stock has to be taken in to consideration on the balance sheet date notwithstanding that fact the same was quantified after the said date. (AY. 2013-14)