In exercise of the powers conferred by sub-section (1) of section 25 of the Customs Act,1962 (52 of 1962), the Central Government, being satisfied that it is necessary in the public interest so to do, hereby exempts the goods specified in column (1) of the Table annexed hereto, from the payment of so much of the customs duty leviable thereon as is specified in column (3) of the said Table, subject to the limitations and conditions specified in column (2) thereof, namely.