Special Additional Excise Duty on petroleum crude amended to a higher per tonne rate, taking effect from the notified commencement. Amends the tariff notification to increase the Special Additional Excise Duty on production of petroleum crude by substituting the entry in column (4) against the first serial number with a revised per tonne rate, effected under powers of the Central Excise Act and the Finance Act, and taking effect from the notified commencement date.