Correct Answer: union legislature

Solution : The correct option is the union legislature .

The residuary powers—that is, the power to legislate on matters not explicitly mentioned in the three lists (Union List, State List, and Concurrent List) of the Seventh Schedule of the Constitution—lie with the Parliament of India (Union Legislature). This means that if a subject matter does not fall within the jurisdiction of the states or is not part of the concurrent jurisdiction, the Parliament has the authority to legislate.