The principal notification No. 30/97-Cus. (N.T.) dated 7th July, 1997 was published in Gazette of India Extraordinary Part-II, Section 3, Sub-section(i), dated 7th July, 1997 under GSR 366(E) and was last amended vide notification No. 18/2002-Cus.(N.T.), dated 7th March, 2002 published in Gazette of India Extraordinary Part-II, Section 3, Sub-section(i), dated 7th March, 2002 under GSR 174(E), dated 7th March, 2002.