Which river forms a natural boundary between Chhattisgarh and Odisha?

Mahanadi
Indravati
Shivnath
Hasdeo

The Mahanadi river forms a natural boundary between Chhattisgarh and Odisha. It is the largest river in the Indian state of Odisha and the sixth largest river in India. The Mahanadi originates in the Amarkantak hills of Madhya Pradesh and flows through the states of Chhattisgarh, Odisha, and Andhra Pradesh. It empties into the Bay of Bengal near Cuttack, Odisha. The Mahanadi is a major source of irrigation and hydroelectric power for the states through which it flows. It is also an important source of drinking water and fish.

The Indravati river is a tributary of the Mahanadi. It originates in the Indravati hills of Chhattisgarh and flows through the states of Chhattisgarh and Odisha. It empties into the Mahanadi near Sambalpur, Odisha. The Indravati is a major source of irrigation and hydroelectric power for the states through which it flows. It is also an important source of drinking water and fish.

The Shivnath river is a tributary of the Mahanadi. It originates in the Amarkantak hills of Madhya Pradesh and flows through the states of Chhattisgarh and Odisha. It empties into the Mahanadi near Sambalpur, Odisha. The Shivnath is a major source of irrigation and hydroelectric power for the states through which it flows. It is also an important source of drinking water and fish.

The Hasdeo river is a tributary of the Mahanadi. It originates in the Amarkantak hills of Madhya Pradesh and flows through the states of Chhattisgarh and Odisha. It empties into the Mahanadi near Sambalpur, Odisha. The Hasdeo is a major source of irrigation and hydroelectric power for the states through which it flows. It is also an important source of drinking water and fish.

Of the four rivers mentioned, the Mahanadi is the only river that forms a natural boundary between Chhattisgarh and Odisha. The other three rivers flow through both states.