Additional excise duty on specified manufactured goods was removed, previously applying alongside central excise rules and accruing to the Union. Section 49, previously imposing an additional duty of excise on goods in the Fifth Schedule manufactured in India, was omitted. The former provision levied an additional duty at schedule rates in addition to other excise charges; applied the Central Excise Act's procedural rules, including refunds and exemptions, to that levy; and directed that proceeds accrue to the Union and not be distributed to the States.