The principal notification No.20/2006-Customs, dated the 1st March, 2006 was published in the Gazette of India, Extraordinary, vide number G.S.R. 92(E), dated the 1st March, 2006 and was last amended vide notification No.20/2008-Customs, dated the 1st March, 2008 which was published in the Gazette of India, Extraordinary, vide number G.S.R.119 (E), dated the 1st March, 2008.