The correct answer is: Eastern Ghats.
The Eastern Ghats are a mountain range that runs along the eastern coast of India. They are a major physiographic region of Chhattisgarh, covering about 60% of the state’s area. The Eastern Ghats are a part of the Deccan Plateau, and are composed of a series of parallel ranges that run north-south. The highest peak in the Eastern Ghats is Deomali, which is located in Chhattisgarh.
The Eastern Ghats are a significant source of water for Chhattisgarh. The rivers that flow from the Eastern Ghats are used for irrigation, drinking water, and hydroelectric power generation. The Eastern Ghats are also home to a variety of plant and animal life.
The Eastern Ghats are a popular tourist destination. The region is home to a number of waterfalls, temples, and wildlife sanctuaries.
The other options are incorrect because they do not cover a major part of Chhattisgarh. The Western Ghats are located in the western part of India, the Northern Plains are located in the northern part of India, and the Coastal Plains are located along the eastern coast of India.