Section 7
[(6) Notwithstanding anything contained in this section, no tax under this Act shall be payable by any dealer in respect of sale of any goods made by such dealer, in the course of inter-State trade or commerce to a registered dealer for the purpose of setting up, operation, maintenance, manufacture, trading, production, processing, assembling, repairing, reconditioning, re-engineering, packaging or for use as packing material or packing accessories in a unit located in any special economic zone or for development, operation and maintenance of special economic zone by the developer of the special