Exemption for intra-unit transfer of intermediate goods allows removal without excise payment subject to manufacture or export condition. A designated large taxpayer may transfer specified intermediate excisable goods between its registered premises without immediate excise payment under a serially numbered transfer challan or invoice, provided the intermediate goods are used to produce subject goods which are cleared on payment of duty or exported under bond/letter of undertaking within six months of receipt; failing which the recipient premises must pay the excise duty attributable to the intermediate goods or an equivalent duty where applicable, with interest under section 11AA, recoverable as provided under the Act.