Excisable goods definition emphasizes marketability; manufacture includes ancillary processes and packing, expanding manufacturer scope. Excisable goods are those specified in the Tariff schedules and include any article capable of being bought and sold and deemed marketable. Factory includes premises where excisable goods (other than salt) are manufactured or where related manufacturing processes are carried on. Manufacture encompasses incidental and ancillary processes, tariff specified processes, and for certain goods packing, repacking and labelling (including retail price declaration) to render products marketable; manufacturer includes persons using hired labour and those producing on their own account.