Consider the following subjects under the Constitution of India: I. List I-Union List, in the Seventh Schedule. II. Extent of the executive power of a State. III. Conditions of the Governor's office. For a constitutional amendment with respect to which of the above, ratification by the Legislatures of not less than one-half of the States is required before presenting the bill to the President of India for assent?

Key rule: Under Article 368, ratification by at least half of the States is required for amendments affecting the Seventh Schedule, distribution of legislative powers, or the extent of executive power of the Union/States. It is not required for ordinary changes to conditions of constitutional offices unless specifically covered.

I. List I – Union List, Seventh Schedule — Amendment of any of the Lists in the Seventh Schedule requires State ratification. Verdict: Correct.

II. Extent of the executive power of a State — Changes in the extent of State executive power also require State ratification under Article 368. Verdict: Correct.

III. Conditions of the Governor's office — This is not one of the matters listed for mandatory State ratification. Verdict: Incorrect.

Therefore, I and II only are covered.