The principal notification was published in the Gazette of India, Extraordinary, part-II, Section-3, Sub-section (i),vide number G.S.R. 87(E), dated the 5th February,1986 and subsequently amended by notification number 42/89-Customs ( NT ), dated the 30th June,1989, number G.S.R. 31 (E), dated the 25th January, 1993 ), number G.S.R. 99(E), dated the 1st March,1995. number G.S.R. 120 (E), dated the 11th March,1996), number G.S.R. 671 (E), dated the 12th November, 1998 and was last amended by number G.S.R.- GSR 117 ( E ), dated 16th February,2004.