With reference to the Ninth Schedule of the Constitution of India, consider the following statements :

1. IIt was intended to protect Central and State laws that are included in it from judicial review on the ground of violation of Fundamental rights.
2. IIThe entries included in it are not restricted to the subject of land reforms and abolition of the zamindari system alone.
3. IIIArticle 31B carries a retrospective effect but it has ceased to be operative after the 'I.R. Coelho Case' (2007).
4. IVThe entries incorporated in it are only done so, by the power of the Central Government.

Which of the statements given above are correct ?