Answer:
Maharashtra, Madhya Pradesh and Chhattisgarh are states having black soil. Cotton is mainly grown in black soil.
Three states in India that have black soil and the crop mainly grown in it are:
Maharashtra: Cotton is the main crop grown in black soil region of Maharashtra.
Gujarat: Cotton, groundnut, and tobacco are the main crops grown in black soil region of Gujarat.
Madhya Pradesh: Soybean, wheat, and maize are the main crops grown in black soil region of Madhya Pradesh.
It is worth mentioning that black soil is also known as "regur soil" or "black cotton soil" and it is mostly found in Deccan Plateau region of India. Black soil is known for its high water-holding capacity and fertility, which makes it suitable for growing crops such as cotton, soybean, wheat, maize and groundnut.