Step 1: Understanding the Concept:
Indian rivers are often given cultural and geographical epithets based on their size, religious significance, and utility.
Step 2: Detailed Explanation:
The Godavari is the longest river in peninsular India and the second-longest river in India after the Ganga.
Because of its immense length (about 1,465 km), large catchment area, and deep cultural and religious significance in southern India, it is often affectionately called "Dakshin Ganga" or the "Ganges of the South".
The river originates from Trimbakeshwar in the Nashik district of Maharashtra and flows eastwards into the Bay of Bengal.
Step 3: Final Answer:
The Godavari River is known as the Dakshin Ganga.