Customs notification amendments expand institutional beneficiaries and add concessional import rule for manufacturing inputs under concessional duty procedure. Amendment of customs exemption notifications expands the class of beneficiary institutions by adding several national research and academic bodies in place of a prior scheme reference; adds a new table entry granting concessional import treatment for goods used in the manufacture of specified products subject to the procedural rules governing concessional imports for manufacture of excisable goods; and omits specified column entries against two serial entries in a separate exemption schedule, thus modifying existing concessions.