Customs tariff change increases duty for specified imports linked to petroleum and coal bed methane operations, altering applicable duty. The amendment replaces the entry in column (5) against S. No. 404 of Notification No. 50/2017 Customs with 18%, changing the duty rate for the specified goods imported by the specified person in relation to petroleum operations or coal bed methane operations; the notification takes effect on 22 September 2025 and is issued under powers conferred by the Customs Act and the Customs Tariff Act.