Correct option is A
The correct answer is (a) Disputes between States or between a State and the Union
Explanation:
. Article 131 grants original jurisdiction.
. It covers federal disputes only.
. Supreme Court acts as a federal court.
. Jurisdiction is exclusive.
. Private individuals cannot invoke Article 131.
Information Booster:
. Writ jurisdiction comes under Article 32.
. Appellate jurisdiction is separate.