Consider the following statements regarding the application of Part IXA of the Constitution of India:

1. Part IXA does not apply to the Scheduled Areas referred to in clause (1), and the tribal areas referred to in clause (2), of Article 244.

2. Parliament may, by law, extend Part IXA to such Scheduled Areas and tribal areas, and such a law is deemed to be an amendment of the Constitution for the purposes of Article 368.

3. In its application to a Union territory, references in Part IXA to the Governor of a State have effect as references to the Administrator appointed under Article 239.

Which of the statements given above are correct?