Explanation:

As a federal court, the Supreme Court decides the disputes between different units of the Indian Federation. More elaborately, any dispute between:

• The Centre and one or more states; or
• The Centre and any state or states on one side and one or more states on the other; or
• Between two or more states.

In the above federal disputes, the Supreme Court has exclusive original jurisdiction. Exclusive means, no other court can decide such disputes and original means, the power to hear such disputes in the first instance, not by way of appeal.