Customs tariff correction adds a new tariff entry and updates proviso cross references affecting exemption scope. Correction substitutes the original S. No. 377A with two entries, 377A and 377AA, listing specified tariff headings and associated goods descriptions (377A excluding SIM socket/other mechanical metal items for cellular mobile phones; 377AA covering listed headings as 'All goods'). The corrigendum also amends paragraph II by omitting specified clauses as before and revises the second proviso to alter the cross reference from 'and 377A' to '377A and 377AA', ensuring the proviso applies to both entries.