Which of the following are matters on which a constitutional amendment is possible only with the ratification of the legislature of not less than one-half of the states?
1. Election of the President.
2. Representation of States in Parliament.
3. Any of the lists in the 7th Schedule.
4. Abolition of the Legislative Council of a State.

Choose the correct answer.

The correct answer is option 4.

Key Points

• Election of the President: Any change in the election process of the President requires a constitutional amendment ratified by at least half the states, as it affects the federal structure.
• Representation of States in Parliament: Changes in state representation require state ratification to ensure federal balance.
• Any of the lists in the 7th Schedule: Alteration in the distribution of powers between Union and States needs ratification, as it impacts federalism. Hence option 4 is right. 

Additional Information

•  Abolition of the Legislative Council of a State: This can be done via a simple majority in Parliament after the state legislature passes a resolution for abolition, and it does not require a constitutional amendment with state ratification.