With reference to the Territorial Extent of Central and State Legislation, consider the following statements:
1. The Parliament has the ability to makelaws for the whole or any part of the territory of India without any restrictions or exceptions.
2. A state legislature's laws are applicable outside the state only if approved by the President of India.
3. The Parliament's 'extra territorial legislation' is limited to Indian citizens and does not apply to Indian companies operating abroad.
4. The President's power to make regulations for Union Territories extendst to all Union Territories, and these regulations can neither repeal nor amend any act of Parliament.
How many of the statements given above are correct?