Concept:
The Constitution of India distributes legislative powers between the Union and the States through the Seventh Schedule. Subjects are classified into the Union List, State List, and Concurrent List. Matters not mentioned in any of these lists are called residuary subjects.
Step 1: Understanding residuary powers.
Residuary powers refer to legislative powers relating to subjects that were not anticipated by the Constitution makers and therefore were not included in any of the three lists.
Step 2: Constitutional provision.
Article 248 of the Constitution provides that Parliament has exclusive power to make laws with respect to any matter not enumerated in the Concurrent List or the State List.
Step 3: Reason behind the provision.
The Constitution ensures national uniformity regarding emerging subjects such as cyber law, digital currencies, and other modern developments by vesting residuary powers in Parliament.
\[
\boxed{\text{Residuary legislative powers belong to Parliament}}
\]