The principal notification was published in the Gazette of India, Extraordinary, vide number G.S.R. 118(E), dated the 1st March, 2002 and was last amended by notification No.92/2006-Customs, dated the 6th September, 2006 which was published in the Gazette of India, Extraordinary vide number G.S.R.536(E), dated the 6th September, 2006.