The Parliament can legislate on the subjects in the State List if the
President issues an order authorising it to do so
Supreme Court gives authority to the Parliament in this regard
Rajya Sabha passes a resolution by two-thirds of its members present and voting, declaring it expedient to legislate on a State matter in the national interest
Under Article 249 of the Indian Constitution, the Parliament can legislate on a subject in the State List if the Rajya Sabha passes a resolution by a two-thirds majority of members present and voting, declaring it necessary in the national interest.