Customs exemption amendment revises tariff table entries and tightens swelling index criterion for specified goods, changing applicable exemptions. The notification omits S. No. 66A from the Table of Notification No. 21/2002 Customs and substitutes, in S. No. 68, the Explanation changing the numerical threshold and the Swelling Index or Crucible Swelling Number requirement that define goods eligible for the specified exemption.