Which article of the Indian Constitution defines the original jurisdiction of the Supreme Court?

Explanation

Article 131 defines the original jurisdiction (Original Jurisdiction) of the Supreme Court. According to this Article, in any dispute between the Government of India and one or more States, or between the Government of India and any State/States on one side and one or more other States on the other side, or between two or more States, if such a question of law or fact is involved on which the existence or extent of a legal right depends, then the Supreme Court will have original jurisdiction over it.