Under which article of the Indian Constitution, the Parliament can make laws on State List subject for giving effect to international agreements?

Which of the following items is a part of the Union List?

In 1950, two separate states were created; Punjab included the former Raj province of Punjab, while the princely states of Patiala, Nabha, Jind, Kapurthala, Malerkotla, Faridkot and Kalsia were combined into a new state, the:

On what basis were the states reorganised mainly in the year 1956?

Which of the following subjects is NOT under the control of the Delhi Legislative Assembly, according to the Constitution?

Which Indian state was the first to be carved out on the basis of language in the year 1956?

​Consider the following statements in respect of Article 3 of the Constitution of India:
1. Parliament may by law form a new State by separation of territory from any State or by uniting two or more States or parts of States or by uniting any territory to a part of any State.
2. Parliament may by law diminish the area of any State.
3. Parliament may by law alter the boundaries of any State.
4. Parliament may by law alter the name of any State.
Which of the statements above is/are correct?​