Special Economic Zone definition clarified to align with Special Economic Zones Act, affecting central excise provision. Amendment to section 3(7) omits clause (1) of the proviso and, in Explanation 2, omits clause (i) and substitutes clause (iii) to define Special Economic Zone by reference to the meaning in clause (za) of section 2 of the Special Economic Zones Act, thereby aligning the Central Excise Act's definition with that statute.