Detailed Explanation:

✅ Option 2 – Correct: Article 249 empowers the Rajya Sabha to pass a resolution (by 2/3rd majority of members present and voting) enabling Parliament to legislate on State List subjects in national interest. Article 312 empowers the Rajya Sabha to pass a resolution (by 2/3rd majority) authorizing Parliament to create All India Services.

❌ Option 1 – Incorrect: Article 3 grants power to Parliament (both Houses) to alter boundaries/names of states, not an exclusive power of Rajya Sabha.

❌ Option 3 – Incorrect: Presidential election procedure amendment requires Constitutional Amendment (Article 368) by both Houses; President's pension is determined by Parliament (both Houses) under Article 59(3).

❌ Option 4 – Incorrect: Article 324(2) empowers the President (not Rajya Sabha) to determine the number of Election Commissioners; their conditions of service are regulated by Parliament (both Houses).