Which river forms the western boundary of the Chhattisgarh Plain, originating from the Rajnandgaon district before joining the Mahanadi near Shivnath-Mahanadi confluence?

💡 Solution & Explanation

The Shivnath River is the longest tributary of the Mahanadi River, originating from the Panabaras hills in the Rajnandgaon district of Chhattisgarh. It flows in a north-easterly direction through Durg and Bemetara before joining the Mahanadi at Shivnath-Mahanadi confluence near Simga. The river plays a crucial role in providing irrigation and industrial water supply.