Answer & solution
Answer: (b) 7^(th )Constitutional Amendment Act
Answer: Option 2 — 7th Constitutional Amendment Act
The 7th Constitutional Amendment Act, 1956 empowered Parliament to establish a common High Court for two or more States (and a Union Territory) under Article 231.
Revision note — High Courts and the 7th Amendment
• Article 214: there shall be a High Court for each State.
• Article 231: Parliament may by law establish a common High Court for two or more States — e.g. Guwahati High Court (Assam, Nagaland, Mizoram, Arunachal Pradesh), Punjab & Haryana High Court (with Chandigarh).
• The 7th Amendment (1956) gave effect to the States Reorganisation Act, 1956 — it abolished the Part A, B, C, D classification and created 14 States and 6 Union Territories.
• The same amendment allowed Parliament to extend a High Court's jurisdiction to a Union Territory (Article 230).
• India has 25 High Courts; the oldest is the Calcutta High Court (1862).
• Judges of a High Court are appointed by the President (Article 217) and retire at 62.
Also asked from this topic: common High Court for two or more States (Article 231); a High Court for each State (Article 214); a High Court shared by several States (Guwahati).
The 7th Amendment is the "States Reorganisation" amendment — common High Courts came with the redrawn map.