Inconsistency between laws: central law prevails over conflicting state law unless presidential assent permits state law to operate. Where a State provision is repugnant to a parliamentary or existing law on a Concurrent List subject, the parliamentary or existing law prevails and the State provision is void to the extent of the repugnancy; however, a repugnant State law may prevail in that State if reserved for the President and assented to by him, subject to Parliament's power to later enact laws that may amend or repeal the State law.