Step 1: Understanding the Original Jurisdiction.
- The Original Jurisdiction of the Supreme Court is defined under Article 131 of the Indian Constitution. It deals with disputes between the Government of India and one or more States.
- It also deals with disputes between States, but it does not apply to disputes between other entities or the general public.
Step 2: Analysis of Options.
- (A) Incorrect. Article 132 deals with Appellate jurisdiction, not Original jurisdiction.
- (B) Correct. The Original jurisdiction in Article 131 is indeed federal in nature, dealing with conflicts between the Union and States.
- (C) Correct. The Original jurisdiction is indeed confined to disputes between different units of the federation, i.e., between the Centre and the States.
- (D) Correct. It applies to any dispute between the Government of India and one or more States.
Step 3: Conclusion.
Thus, the correct answer is (D) B, C and D only.