Service tax notification amendment: substitution of 'April' with 'July' in para 3 altering exemption timing. The Central Government, invoking powers under the Finance Act, amends Notification No.9/2010 Service Tax by substituting the word April with July in paragraph 3, thereby changing the month referenced for the service tax exemption applicable to rail transport services; the amendment is issued as Notification No.9/2012 Service Tax and cites the principal notification and its prior amendment in the Gazette.