Customs tariff amendment adds integrated receiver decoders to the tariff table, altering duty and exemption entries. Amendment to Notification No. 21/2002-Customs substitutes clause (c) in the proviso to defer a Table entry and alters the Table by omitting S. No. 316A, inserting a new S. No. 316C for tariff heading 8528 described as Integrated Receiver Decoder (Set-top Box), and specifying the corresponding duty and column entries as provided.