Customs tariff amendments revising exemptions and duty rates for specified agricultural, solar, medical and industrial inputs and effective periods Further amendments to the customs exemption schedule insert numerous new tariff entries, substitute duty column entries, omit certain serials with future effect, and impose concessional duty rates or Nil for specified goods used in aquaculture, feed, photovoltaic manufacturing, medical imaging, petrochemical and other industrial applications. The notification adds temporal provisos and sunset clauses for many entries, revises existing provisos to extend operative periods for a broad set of serials, and amends the Annexure to require particular certifications and to expand Lists defining eligible inputs and machinery for conditional exemptions.