The correct answer is: Plains and river basins.
Chhattisgarh is a state in central India. It is the 10th largest state in India by area and the 12th most populous state. The state is bordered by Madhya Pradesh to the north, Maharashtra to the west, Odisha to the south, Andhra Pradesh to the southeast, and Jharkhand to the east.
The majority of Chhattisgarh’s land area is covered by plains and river basins. The state’s major rivers are the Mahanadi, the Godavari, and the Indravati. The plains and river basins are home to the state’s major cities, including Raipur, the state capital, and Bilaspur.
The state’s mountainous regions are located in the north and east. The major mountain ranges in Chhattisgarh are the Vindhya Range and the Satpura Range. The mountainous regions are home to the state’s tribal population.
The state’s plateau region is located in the south. The major plateau in Chhattisgarh is the Chhattisgarh Plateau. The plateau region is home to the state’s major mineral deposits.
In conclusion, the maximum geographical area of Chhattisgarh state is under plains and river basins.