India has been divided into different agricultural regions. Consider the following statements with respect to the agricultural regions of the country:

1. The millets and oilseeds region includes areas of poor soils and broken topography in Karnataka plateau, parts of Tamil Nadu, southern Andhra Pradesh, and eastern Kerala.

2. Maize is mainly grown in the Mewar plateau where the rainfall is scanty and only irrigation helps in cultivation.

3. Rich fertile alluvial soils with moderate rainfall is characteristic of the cotton region of the country.

4. The rice-tea-jute region has the largest north-south extent ranging from the borders of Kerala to Arunachal Pradesh.

Which of the above statements is/are correct?