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?

Correct Option: I and II only

Under Article 368 of the Constitution, amendments concerning certain federal provisions require special majority in Parliament as well as ratification by the Legislatures of at least one-half of the States by simple majority. These include Item I (Union List in the Seventh Schedule) and Item II (Extent of the executive power of a State), as they affect federal balance. However, Item III (Conditions of the Governor's office) does not require state ratification and can be amended by Parliament alone via special majority. Therefore, I and II are correct.