Extension of zero customs duty on chickpeas by amendment to the exemption notification, delaying its expiry to a later date. Amendment substitutes the expiry date in the proviso to clause (ab) of Notification No. 12/2012 Customs, thereby extending the zero customs duty exemption on chickpeas; effected by Notification No. 39/2014 Customs issued under section 25(1) of the Customs Act, 1962, which replaces the earlier specified expiry with a later date and records the amending notification reference.