The correct answer is Mahanadi.
The Mahanadi is the largest river in the Indian state of Chhattisgarh. It is the 13th longest river in India and the 10th largest river in terms of drainage basin area. The river originates in the Sihawa hills of the Dandakaranya forest in the district of Dhamtari in Chhattisgarh. It flows through the states of Chhattisgarh, Odisha, and Andhra Pradesh before emptying into the Bay of Bengal.
The Indravati, Hasdeo, and Shivnath are all tributaries of the Mahanadi. The Indravati is the largest tributary of the Mahanadi. It originates in the Indravati hills of the Bastar district in Chhattisgarh. The Hasdeo is a tributary of the Indravati. It originates in the Hasdeo hills of the Sarguja district in Chhattisgarh. The Shivnath is a tributary of the Hasdeo. It originates in the Shivnath hills of the Koriya district in Chhattisgarh.
The Mahanadi is a major source of irrigation and drinking water for the people of Chhattisgarh. It is also a major source of hydroelectric power. The river is home to a variety of fish and other aquatic life. The Mahanadi is also a popular tourist destination.